CN110639544A - Components for low-carbon alkane dehydrogenation catalyst and preparation method thereof - Google Patents
Components for low-carbon alkane dehydrogenation catalyst and preparation method thereof Download PDFInfo
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 145
- 239000003054 catalyst Substances 0.000 title claims abstract description 52
- 238000006356 dehydrogenation reaction Methods 0.000 title claims description 46
- 238000002360 preparation method Methods 0.000 title claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 48
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 48
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 48
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 37
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 claims abstract description 34
- QZQVBEXLDFYHSR-UHFFFAOYSA-N gallium(III) oxide Inorganic materials O=[Ga]O[Ga]=O QZQVBEXLDFYHSR-UHFFFAOYSA-N 0.000 claims abstract description 33
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910000428 cobalt oxide Inorganic materials 0.000 claims abstract description 24
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910000480 nickel oxide Inorganic materials 0.000 claims abstract description 24
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims abstract description 24
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910001950 potassium oxide Inorganic materials 0.000 claims abstract description 24
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 24
- 239000011787 zinc oxide Substances 0.000 claims abstract description 24
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims description 44
- 238000001035 drying Methods 0.000 claims description 35
- 238000003756 stirring Methods 0.000 claims description 19
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 15
- 235000015110 jellies Nutrition 0.000 claims description 14
- 239000008274 jelly Substances 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- 239000012188 paraffin wax Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract description 67
- 230000007547 defect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 description 119
- 230000003197 catalytic effect Effects 0.000 description 36
- 238000006555 catalytic reaction Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 16
- 230000008569 process Effects 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000009826 distribution Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 7
- -1 carbon alkane Chemical class 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 230000003993 interaction Effects 0.000 description 4
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 125000003963 dichloro group Chemical group Cl* 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8898—Manganese, technetium or rhenium containing also molybdenum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
- C07C5/333—Catalytic processes
- C07C5/3332—Catalytic processes with metal oxides or metal sulfides
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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Abstract
The catalyst comprises gallium trioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide. The weight portion of the gallium sesquioxide is 12 to 34 portions; the weight portion of manganese dioxide is 21-29 portions; the cobalt oxide accounts for 18-24 parts by weight; the weight portion of the nickel oxide is 18 to 24 portions; 44-52 parts of zinc oxide; the weight portion of the titanium dioxide is 31 to 43 portions; the weight portion of the aluminum oxide is 24 to 72 portions; the weight portion of the potassium oxide is 12 to 16 portions. The defect of low yield of the low-carbon olefin in the prior art in which the gallium sesquioxide is used as the catalyst in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane is effectively overcome.
Description
Technical Field
The invention relates to the technical field of low-carbon alkane dehydrogenation and the technical field of catalysts, in particular to a component for a low-carbon alkane dehydrogenation catalyst and a preparation method thereof.
Background
The low-carbon olefin is an important intermediate in petrochemical industry, can be used for producing polymer materials such as poly low-carbon olefin, polyphenyl low-carbon olefin, polyvinyl chloride low-carbon olefin and the like, and derivatives such as chloro low-carbon olefin, dichloro low-carbon olefin, epoxy low-carbon alkane, ethylene glycol and the like, and more than 70% of products in the petrochemical industry are related to the low-carbon olefin. At present, the production of low-carbon olefin is mainly from the cracking process of naphtha or light oil. With the increasing shortage of petroleum resources, the dehydrogenation of low-carbon alkanes with abundant and cheap sources to prepare low-carbon olefins can avoid petroleum routes, and thus the method is more and more concerned by people.
The method for obtaining low-carbon olefin by dehydrogenation of low-carbon alkane has been widely applied, and in the method for obtaining low-carbon olefin by dehydrogenation of low-carbon alkane, the application is common at present, namely the gallium trioxide is used as a catalyst to achieve the catalytic performance during the process of obtaining low-carbon olefin by dehydrogenation of low-carbon alkane. However, in specific use, the yield of the low-carbon olefin is not high when the gallium sesquioxide is used as the catalyst.
Disclosure of Invention
In order to solve the problems, the invention provides a component for a low-carbon alkane dehydrogenation catalyst, which effectively overcomes the defect of low yield of low-carbon alkene when gallium trioxide is used as the catalyst in the method for obtaining the low-carbon alkene by dehydrogenation of the low-carbon alkane in the prior art.
In order to overcome the defects in the prior art, the invention provides a solution for components of a low-carbon alkane dehydrogenation catalyst, which comprises the following specific steps:
the catalyst for dehydrogenating low carbon alkane consists of gallium trioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide.
The weight portion of the gallium sesquioxide is 12 to 34 portions;
the manganese dioxide accounts for 21-29 parts by weight;
the cobalt oxide accounts for 18-24 parts by weight;
the weight portion of the nickel oxide is 18-24 portions;
the weight portion of the zinc oxide is 44-52 portions;
the weight portion of the titanium dioxide is 31 to 43 portions;
the weight portion of the aluminum oxide is 24-72;
the weight portion of the potassium oxide is 12 to 16 portions;
the weight part of the cerium dioxide is 8-22 parts;
the weight portion of the molybdenum trioxide is 6 to 12.
A preparation method of a catalyst for dehydrogenation of light alkane comprises the following steps:
step 1: mixing the gallium trioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide together to form a mixture, grinding the mixture by using a grinder, and grinding the mixture into a granular mixture;
step 2: putting the granular mixture, the solid paraffin and the trioxadehyde glue together according to a set weight proportion condition, stirring uniformly, and obtaining a jelly after stirring uniformly;
and step 3: feeding the jelly into a pressing machine to be pressed to obtain a block;
and 4, step 4: and drying the blocky substance to obtain the catalyst for dehydrogenation of the low-carbon alkane.
The particle diameter of the granular mixture is 70um-74 um.
The drying temperature for drying is 120-230 ℃.
The device used for drying is a dryer.
The granular mixture, the solid paraffin and the trialdehyde glue are mixed according to the set weight ratio of (5-11): (1-9): (2-6).
The stirring is realized by a stirrer.
The invention has the technical effects that:
mixing the gallium trioxide, the manganese dioxide, the cobalt oxide, the nickel oxide, the zinc oxide, the titanium dioxide, the aluminum oxide, the potassium oxide, the cerium dioxide and the molybdenum trioxide together to form a mixture, grinding the mixture by using a grinder, and grinding the mixture into a granular mixture; putting the granular mixture, the solid paraffin and the trioxadehyde glue together according to a set weight proportion condition, stirring uniformly, and obtaining a jelly after stirring uniformly; feeding the jelly into a pressing machine to be pressed to obtain a block; and drying the blocky substance to obtain the catalyst for dehydrogenation of the low-carbon alkane. The aluminum oxide has a porous structure, a high specific surface area and an unstable transition state, so that the aluminum oxide has high activity and can effectively improve the yield of the low-carbon olefin; the gallium trioxide can improve the catalytic performance of the low-carbon alkane dehydrogenation to obtain the low-carbon olefin, can improve the stability during catalysis, and can also improve the yield of the low-carbon olefin; manganese has various variable valence states, so that electrons are easy to transfer, and the manganese dioxide has high electrochemical performance and good catalytic activity and can also improve the yield of low-carbon olefin; the cobalt oxide is rich in high-index crystal faces, is a good catalyst, and can be matched with other components to improve the catalytic performance; the nickel oxide plays a catalytic role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, so that the selectivity of the low-carbon olefin and the cracking performance of the high-temperature low-carbon alkane can be obviously improved; the titanium dioxide has good catalytic performance and can play a good catalytic promotion effect on the conversion rate of the low-carbon alkane in the conversion process of the low-carbon alkane; the cerium dioxide plays a stabilizing role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, thereby achieving the effect of improving the catalytic performance of the catalyst; the zinc oxide, the potassium oxide and the molybdenum trioxide can improve the stability during catalysis and can also improve the yield of the low-carbon olefin.
Drawings
The specific structure is shown in the following figures:
fig. 1 is a flow chart of the preparation method of the catalyst for dehydrogenation of light alkane of the present invention.
Detailed Description
The invention will be further described with reference to the following figures and examples.
Example 1:
as shown in FIG. 1, the components for the light alkane dehydrogenation catalyst comprise gallium sesquioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide. The aluminum oxide has a porous structure, a high specific surface area and an unstable transition state, so that the aluminum oxide has high activity and can effectively improve the yield of the low-carbon olefin; the gallium trioxide can improve the catalytic performance of the low-carbon alkane dehydrogenation to obtain the low-carbon olefin, can improve the stability during catalysis, and can also improve the yield of the low-carbon olefin; manganese has various variable valence states, so that electrons are easy to transfer, and the manganese dioxide has high electrochemical performance and good catalytic activity and can also improve the yield of low-carbon olefin; the cobalt oxide is rich in high-index crystal faces, is a good catalyst, and can be matched with other components to improve the catalytic performance; the nickel oxide plays a catalytic role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, so that the selectivity of the low-carbon olefin and the cracking performance of the high-temperature low-carbon alkane can be obviously improved; the titanium dioxide has good catalytic performance and can play a good catalytic promotion effect on the conversion rate of the low-carbon alkane in the conversion process of the low-carbon alkane; the cerium dioxide plays a stabilizing role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, thereby achieving the effect of improving the catalytic performance of the catalyst; the zinc oxide, the potassium oxide and the molybdenum trioxide can improve the stability during catalysis and can also improve the yield of the low-carbon olefin. The lower alkane can be ethane. The lower olefin can be ethylene.
The weight part of the gallium sesquioxide is 12 parts;
the manganese dioxide accounts for 21 parts by weight;
the weight part of the cobalt oxide is 18 parts;
the weight portion of the nickel oxide is 18 portions;
44 parts of zinc oxide;
the weight part of the titanium dioxide is 31 parts;
the weight portion of the aluminum oxide is 24 portions;
the weight portion of the potassium oxide is 12 portions;
the weight part of the cerium dioxide is 8 parts;
the weight portion of the molybdenum trioxide is 6.
The preparation method of the catalyst for dehydrogenation of the light alkane comprises the following steps:
step 1: mixing the gallium trioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide together to form a mixture, grinding the mixture by using a grinder, and grinding the mixture into a granular mixture;
step 2: putting the granular mixture, the solid paraffin and the trioxadehyde glue together according to a set weight proportion condition, stirring uniformly, and obtaining a jelly after stirring uniformly;
and step 3: feeding the jelly into a pressing machine to be pressed to obtain a block;
and 4, step 4: and drying the blocky substance to obtain the catalyst for dehydrogenation of the low-carbon alkane.
The particle diameter of the granulated mixture was 70 um.
The drying temperature of the drying is 120 ℃.
The device used for drying is a dryer.
The granular mixture, the solid paraffin and the trialdehyde glue are mixed according to the set weight ratio of 5: 1: 6.
the stirring is realized by a stirrer.
In the prior art, gallium trioxide is used as a catalyst in the method for obtaining low-carbon olefins by dehydrogenation of low-carbon alkanes, so that the low-carbon olefins as a first control group and the low-carbon olefins obtained by catalysis of the low-carbon alkane dehydrogenation catalyst obtained in the present embodiment are obtained under the same conditions by using the same weight of gallium trioxide and the low-carbon alkane dehydrogenation catalyst obtained in the present embodiment, and the results of the low-carbon olefin yield obtained by catalysis in the present embodiment and the low-carbon olefin yield of the low-carbon olefins in the first control group are shown in table 1:
TABLE 1
| Low carbon alkane yield | |
| Control group one | 28.4％ |
| This example | 38.3％ |
As can be seen from table 1, the yield of the low carbon olefin obtained by the catalysis of this example is significantly higher than that of the low carbon olefin of the first control group.
Example 2:
as shown in FIG. 1, the components for the light alkane dehydrogenation catalyst comprise gallium sesquioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide. The aluminum oxide has a porous structure, a high specific surface area and an unstable transition state, so that the aluminum oxide has high activity and can effectively improve the yield of the low-carbon olefin; the gallium trioxide can improve the catalytic performance of the low-carbon alkane dehydrogenation to obtain the low-carbon olefin, can improve the stability during catalysis, and can also improve the yield of the low-carbon olefin; manganese has various variable valence states, so that electrons are easy to transfer, and the manganese dioxide has high electrochemical performance and good catalytic activity and can also improve the yield of low-carbon olefin; the cobalt oxide is rich in high-index crystal faces, is a good catalyst, and can be matched with other components to improve the catalytic performance; the nickel oxide plays a catalytic role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, so that the selectivity of the low-carbon olefin and the cracking performance of the high-temperature low-carbon alkane can be obviously improved; the titanium dioxide has good catalytic performance and can play a good catalytic promotion effect on the conversion rate of the low-carbon alkane in the conversion process of the low-carbon alkane; the cerium dioxide plays a stabilizing role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, thereby achieving the effect of improving the catalytic performance of the catalyst; the zinc oxide, the potassium oxide and the molybdenum trioxide can improve the stability during catalysis and can also improve the yield of the low-carbon olefin. The lower alkane can be ethane. The lower olefin can be ethylene.
The weight part of the gallium sesquioxide is 23 parts;
the weight part of the manganese dioxide is 25 parts;
the weight part of the cobalt oxide is 21 parts;
the weight portion of the nickel oxide is 21 portions;
the weight part of the zinc oxide is 48 parts;
the weight part of the titanium dioxide is 38 parts;
48 parts of aluminum oxide;
the weight part of the potassium oxide is 14 parts;
the weight part of the cerium dioxide is 15 parts;
the weight portion of the molybdenum trioxide is 9 portions.
The preparation method of the catalyst for dehydrogenation of the light alkane comprises the following steps:
step 1: mixing the gallium trioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide together to form a mixture, grinding the mixture by using a grinder, and grinding the mixture into a granular mixture;
step 2: putting the granular mixture, the solid paraffin and the trioxadehyde glue together according to a set weight proportion condition, stirring uniformly, and obtaining a jelly after stirring uniformly;
and step 3: feeding the jelly into a pressing machine to be pressed to obtain a block;
and 4, step 4: and drying the blocky substance to obtain the catalyst for dehydrogenation of the low-carbon alkane.
The particle diameter of the granulated mixture was 72 um.
The drying temperature of the drying is 175 ℃.
The device used for drying is a dryer.
The granular mixture, the solid paraffin and the trialdehyde glue are mixed according to the set weight ratio of 8: 5: 4.
the stirring is realized by a stirrer.
In the prior art, gallium trioxide is used as a catalyst in the method for obtaining low-carbon olefins by dehydrogenation of low-carbon alkanes, so that the low-carbon olefins serving as a reference group two and the low-carbon olefins obtained by catalysis of the low-carbon alkane dehydrogenation catalyst obtained in the present embodiment are obtained by using the same weight of gallium trioxide and the low-carbon alkane dehydrogenation catalyst obtained in the present embodiment under the same conditions, and the results of the low-carbon olefin yield obtained by catalysis in the present embodiment and the low-carbon olefin yield of the low-carbon olefins in the reference group two are shown in table 2:
TABLE 2
| Low carbon alkane yield | |
| Control group two | 29.1％ |
| This example | 39.2％ |
As can be seen from table 2, the yield of the low-carbon olefin obtained by the catalysis in this example is significantly higher than that of the low-carbon olefin in the control group two.
Example 3:
the components for the low-carbon alkane dehydrogenation catalyst shown in the figure 1 comprise gallium sesquioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide. The aluminum oxide has a porous structure, a high specific surface area and an unstable transition state, so that the aluminum oxide has high activity and can effectively improve the yield of the low-carbon olefin; the gallium trioxide can improve the catalytic performance of the low-carbon alkane dehydrogenation to obtain the low-carbon olefin, can improve the stability during catalysis, and can also improve the yield of the low-carbon olefin; manganese has various variable valence states, so that electrons are easy to transfer, and the manganese dioxide has high electrochemical performance and good catalytic activity and can also improve the yield of low-carbon olefin; the cobalt oxide is rich in high-index crystal faces, is a good catalyst, and can be matched with other components to improve the catalytic performance; the nickel oxide plays a catalytic role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, so that the selectivity of the low-carbon olefin and the cracking performance of the high-temperature low-carbon alkane can be obviously improved; the titanium dioxide has good catalytic performance and can play a good catalytic promotion effect on the conversion rate of the low-carbon alkane in the conversion process of the low-carbon alkane; the cerium dioxide plays a stabilizing role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, thereby achieving the effect of improving the catalytic performance of the catalyst; the zinc oxide, the potassium oxide and the molybdenum trioxide can improve the stability during catalysis and can also improve the yield of the low-carbon olefin. The lower alkane can be ethane. The lower olefin can be ethylene.
The weight part of the gallium sesquioxide is 34 parts;
29 parts of manganese dioxide;
the weight part of the cobalt oxide is 24 parts;
24 parts of nickel oxide;
the weight part of the zinc oxide is 52 parts;
the weight part of the titanium dioxide is 43 parts;
72 parts of aluminum oxide;
the weight part of the potassium oxide is 16 parts;
the weight part of the cerium dioxide is 22 parts;
the weight portion of the molybdenum trioxide is 12 portions.
A preparation method of a catalyst for dehydrogenation of light alkane comprises the following steps:
step 1: mixing the gallium trioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide together to form a mixture, grinding the mixture by using a grinder, and grinding the mixture into a granular mixture;
step 2: putting the granular mixture, the solid paraffin and the trioxadehyde glue together according to a set weight proportion condition, stirring uniformly, and obtaining a jelly after stirring uniformly;
and step 3: feeding the jelly into a pressing machine to be pressed to obtain a block;
and 4, step 4: and drying the blocky substance to obtain the catalyst for dehydrogenation of the low-carbon alkane.
The particle diameter of the granulated mixture was 74 um.
The drying temperature of the drying is 230 ℃.
The device used for drying is a dryer.
The granular mixture, the solid paraffin and the trialdehyde glue are mixed according to the set weight ratio of 11: 9: 6.
the stirring is realized by a stirrer.
In the prior art, gallium trioxide is used as a catalyst in the method for obtaining low-carbon olefins by dehydrogenation of low-carbon alkanes, so that the low-carbon olefins serving as a control group iii and the low-carbon olefins obtained by catalysis of the low-carbon alkane dehydrogenation catalyst obtained in the present embodiment are obtained under the same conditions by using the same weight of gallium trioxide and the low-carbon alkane dehydrogenation catalyst obtained in the present embodiment, respectively, and the results of the low-carbon olefin yield obtained by catalysis in the present embodiment and the low-carbon olefin yield of the low-carbon olefins in the control group iii are shown in table 3:
TABLE 3
| Low carbon alkane yield | |
| Control group III | 28.7％ |
| This example | 42.1％ |
As can be seen from Table 2, the yield of the low-carbon olefins obtained by the catalysis of this example is higher than that of the control group III.
In summary, the above-mentioned gallium oxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium oxide and molybdenum trioxide are mixed together to form a mixture, and the mixture is ground by a grinder to form a granulated mixture; putting the granular mixture, the solid paraffin and the trioxadehyde glue together according to a set weight proportion condition, stirring uniformly, and obtaining a jelly after stirring uniformly; feeding the jelly into a pressing machine to be pressed to obtain a block; and drying the blocky substance to obtain the catalyst for dehydrogenation of the low-carbon alkane. The aluminum oxide has a porous structure, a high specific surface area and an unstable transition state, so that the aluminum oxide has high activity and can effectively improve the yield of the low-carbon olefin; the gallium trioxide can improve the catalytic performance of the low-carbon alkane dehydrogenation to obtain the low-carbon olefin, can improve the stability during catalysis, and can also improve the yield of the low-carbon olefin; manganese has various variable valence states, so that electrons are easy to transfer, and the manganese dioxide has high electrochemical performance and good catalytic activity and can also improve the yield of low-carbon olefin; the cobalt oxide is rich in high-index crystal faces, is a good catalyst, and can be matched with other components to improve the catalytic performance; the nickel oxide plays a catalytic role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, so that the selectivity of the low-carbon olefin and the cracking performance of the high-temperature low-carbon alkane can be obviously improved; the titanium dioxide has good catalytic performance and can play a good catalytic promotion effect on the conversion rate of the low-carbon alkane in the conversion process of the low-carbon alkane; the cerium dioxide plays a stabilizing role in the method for obtaining the low-carbon olefin by dehydrogenating the low-carbon alkane, thereby achieving the effect of improving the catalytic performance of the catalyst; the zinc oxide, the potassium oxide and the molybdenum trioxide can improve the stability during catalysis and can also improve the yield of the low-carbon olefin.
Under the condition that the device used for drying is a dryer, the drying temperature of the dryer is remotely monitored, a temperature sensor is arranged in the dryer and used for collecting temperature data of the drying temperature of the dryer, the temperature sensor is connected with a controller, the controller is connected with a background terminal in a wireless network through a wireless communication module, the controller can be an MCU (microprogrammed control unit), the background terminal can be a PC (personal computer), the wireless communication module can be a 3G module, the wireless network can be a 3G network, the background terminal is connected with a monitoring terminal used by an administrator in the wireless network, the monitoring terminal can be a PC, the temperature data of the drying temperature of the dryer collected by the temperature sensor can be transmitted to the controller, and then the controller is forwarded to the background terminal in the wireless network through the wireless communication module to be displayed and stored, therefore, the aim of remotely monitoring the drying temperature of the dryer is achieved, when a plurality of monitoring terminals connected to the background terminal exist, if a plurality of managers execute operation operations in the monitoring terminals concurrently, the operation is like adding marks to the temperature data, canceling the marks to the temperature data and stopping acquiring the temperature data, the plurality of monitoring terminals transmit operation commands to the background terminal concurrently, however, the background terminal cannot feed back a plurality of operation commands concurrently, and the monitoring terminal cannot operate the background terminal.
The improved drying machine is characterized in that a temperature sensor is arranged in the drying machine and used for collecting temperature data of the drying temperature of the drying machine, the temperature sensor is connected with a controller, the controller is connected with a background terminal in a wireless network through a wireless communication module, the controller can be an MCU, the background terminal can be a PC, the wireless communication module can be a 3G module, the wireless network can be a 3G network, the background terminal is connected with a monitoring terminal used by an administrator in the wireless network, the monitoring terminal can be a PC, so that the temperature data of the drying temperature of the drying machine collected by the temperature sensor can be transmitted into the controller, and then the controller is forwarded to the background terminal in the wireless network through the wireless communication module to be displayed and stored, so that the aim of remotely monitoring the drying temperature of the drying machine is achieved, and in the wireless network, it can have several monitoring terminals, 3G switch device and background terminal, where each monitoring terminal can make data interaction link with the 3G switch device via 3G communication mode, and all data interfaces in the background terminal can build data link via 3G mode, where there can be a data interface just like the first data interface can directly build data link with the 3G switch device via 3G communication mode, and another data interface just like the second data interface, the third data interface and the fourth data interface can indirectly execute data interaction with the 3G switch device via the first data interface, and after the monitoring terminal with operating program and the 3G switch device build 3G link, the monitoring terminal can indirectly execute data link with the background terminal via the 3G switch device, and all data interfaces in the background terminal can be operated, the background terminal can transmit temperature data to the monitoring terminal, and the monitoring terminal can also transmit an operation command to the background terminal, so that data transmission between the background terminal and the monitoring terminal is formed.
And a method of handling said data transfer, the method comprising the steps of:
step A-1: the administrator constructs data link with the background terminal through the monitoring terminal;
here, the administrator can place several wireless APs in the operating room, which can be set at will, like placing several wireless APs in different rooms in the writing room at the same height, like placing a first wireless AP and a second wireless AP in the writing room one; the third wireless AP is placed in a second writing room; the fourth wireless AP is placed in the writing room III; placing a plurality of wireless APs on different floors in writing rooms with different heights; the plurality of wireless APs can form a subnet, and data interaction can be performed between the wireless APs in the subnet via a 3G mode.
Here, the monitoring terminal can construct a data link with the backend terminal via the 3G switch device, the monitoring terminal and the backend terminal both maintain the 3G link with the 3G switch device, and the monitoring terminal having the operating program can perform data interaction with the backend terminal via the 3G switch device; here, the operating program can store the related information of all data interfaces included in the backend terminal, like: IDs of all data interfaces, channel contents of the data interfaces.
Step A-2: and receiving the weight of the data link transmitted by the background terminal.
Here, after the monitoring terminal constructs the data link with the background terminal, the background terminal can determine the weight of the data link of the monitoring terminal, wherein the frequency of constructing the data link is more and the weight of the data link is larger; or, the weight of the data link is larger the closer the time of constructing the data link is.
Preferably, after the step a-1 and before the step a-2, the monitoring terminal is capable of transmitting a weight acquisition request message of the data link to the background terminal to activate the background terminal to feed back the weight acquisition request message of the data link, retrieve the weight of the data link of the monitoring terminal, and return the weight of the data link of the monitoring terminal to the monitoring terminal.
Preferably, after the monitoring terminal is connected to the background terminal, the background terminal can actively transmit the weight of the data link of the monitoring terminal to the monitoring terminal, so that the monitoring terminal can receive the weight of the data link transmitted by the background terminal.
Step A-3: and receiving an imported manipulation command for manipulating the background terminal.
After the monitoring terminal is connected with the background terminal, an administrator can import an operation command on an operation program of the monitoring terminal, wherein the operation command is used for operating the background terminal, namely operating all data interfaces in the background terminal. Here, the manipulation command can include a command to add a flag to the temperature data, a command to cancel a flag to the temperature data, and a command to suspend acquisition of the temperature data.
Step A-4: judging whether the weight is the maximum weight, if not, turning to the step A-5 to carry out, if so, executing the step A-7;
here, when different monitoring terminals connect to the background terminal, the weights of the data links are different, and the assigned values are also different; the monitoring terminal with the maximum weight can transmit the operation command to the background terminal at any time, but the monitoring terminal not with the maximum weight needs to listen to the assigned value assigned by the monitoring terminal with the maximum weight, as follows: a time assigned value for transferring the manipulation command, or an assigned value for transferring manipulation contents included in the manipulation command.
Therefore, after the monitoring terminal receives the imported operation command for operating the background terminal, the monitoring terminal must first determine whether the weight of the data link of the monitoring terminal is the maximum weight.
Step A-5: and receiving the time interval message transmitted by the monitoring terminal with the maximum weight value.
Here, when the monitoring terminal determines that the weight of the data link of the monitoring terminal is not the maximum weight, the manipulation command received by the monitoring terminal cannot be transmitted to the background terminal in real time, and at this time, the monitoring terminal stores the manipulation command in a FIFO buffer for storing commands and keeps watch for the time slot message transmitted by the monitoring terminal with the maximum weight, where the time slot message has a start time and the monitoring terminal with the maximum weight is in the time slot of the time slot in which it does not transmit commands to the background terminal, that is, the time slot of the adjacent command transmission time, as follows: 0.03s, it is possible to pass the period message towards the monitoring terminal which is additionally linked to the background terminal.
When the monitoring terminal receives the time interval message transmitted by the monitoring terminal with the maximum weight, the monitoring terminal can transmit the operation command to the background terminal within the starting and stopping time included in the time interval message; here, the start-stop times included in the respective period messages transmitted by the monitoring terminal having the largest weight do not intersect with each other, that is, the start-stop times included in the period messages transmitted by the monitoring terminal having the largest weight received by the respective monitoring terminals are different.
Step A-6: and transmitting the operation command to the background terminal in the starting and stopping time included in the time interval message, thereby completing the process.
Here, the monitoring terminal transmits the manipulation command to the background terminal at the start and end times included in the period message, and the start and end times included in the respective period messages transmitted by the monitoring terminal having the largest weight do not intersect each other, and the monitoring terminal having the largest weight transmits the period message to another monitoring terminal in the period in which the monitoring terminal does not transmit the command.
Step A-7: and transmitting the operation command to the background terminal.
When the monitor terminal determines that the weight value is the maximum weight value, the monitor terminal has the maximum assigned value and can transmit the operation command to the background terminal in real time,
the monitoring terminal is connected with the background terminal and receives a weight value of a data link transmitted by the background terminal, in addition, the monitoring terminal can receive an operation command which is introduced by an administrator and used for operating the background terminal, judges whether the weight value is the maximum weight value or not, if not, the monitoring terminal can receive a time interval message transmitted by the monitoring terminal with the maximum weight value, can transmit the operation command to the background terminal within the starting and stopping time included by the time interval message, and if so, can directly transmit the operation command to the background terminal; therefore, when a plurality of monitoring terminals are connected with the background terminal and a plurality of managers are simultaneously used for importing the operation commands into the monitoring terminals, each monitoring terminal can firstly judge whether the weight of the monitoring terminal is the maximum weight, if so, directly transmitting the operation command to the background terminal, if not, waiting for receiving the time interval message transmitted by the monitoring terminal with the maximum weight value, because the start-stop time included in each time interval message transmitted by the monitoring terminal with the largest weight value does not intersect, and the monitoring terminal having the greatest weight value transmits a period message to another monitoring terminal within a time when it does not transmit the manipulation command, therefore, when the monitoring terminal transmits the operation command to the background terminal in the starting and stopping time, the periods of transmitting the operation command by all the monitoring terminals can be ensured not to interfere with each other, and the background terminal can be operated efficiently.
Yet another method of manipulating data transfer can include the following:
step B-1: the administrator constructs data link with the background terminal through the monitoring terminal;
step B-2: the monitoring terminal receives the weight of the data link transmitted by the background terminal;
step B-3: the monitoring terminal receives an imported operation command for operating the background terminal;
step B-4: the terminal for monitoring judges whether the weight is the maximum weight, if not, the step is carried out in the step B-5, if so, the step is carried out in the step B-10;
step B-5: the monitoring terminal receives the time interval message transmitted by the monitoring terminal with the maximum weight.
Step B-6: the monitoring terminal transmits the allocation value to the monitoring terminal with the maximum weight value to obtain the requirement message.
Here, the monitoring terminal receives the time period message transmitted from the monitoring terminal having the largest weight, and after the starting and ending time of the transmission of the manipulation command is obtained in the time period message, the monitoring terminal should transmit the assignment value obtaining request message to the monitoring terminal having the largest weight to determine whether the manipulation content included in the manipulation command satisfies the requirement.
Step B-7: the monitor terminal receives the distribution value transmitted by the request message obtained by the monitor terminal feedback distribution value with the maximum weight.
The monitoring terminal with the maximum weight value respectively allocates allocation values to other monitoring terminals connected to the background terminal, and the other monitoring terminals can only transmit the operation commands in the allocation value range, so that the monitoring terminals can be prevented from operating the background terminal at will; here, the assigned value can include, but is not limited to, an assigned value for temperature data addition, an assigned value for temperature data withdrawal.
Step B-8: the monitoring terminal judges whether the operation content included in the operation command is included in the range of the assigned value, if so, the process goes to the step B-9, and if not, the process is terminated.
After receiving the distribution value transmitted by the request message obtained by the monitoring terminal feedback distribution value with the maximum weight, the monitoring terminal can judge whether the operation content included in the operation command belongs to the distribution value range, if so, the monitoring terminal can transmit the operation command to the background terminal, otherwise, the monitoring terminal cannot transmit the operation command to the background terminal.
Step B-9: the monitoring terminal transmits the operation command to the background terminal in the starting and stopping time included in the time interval message, so as to complete the process.
Step B-10: and the monitoring terminal transmits the operation command to the background terminal.
Step B-11: the monitoring terminal receives the identification codes of more than one data interface transmitted by the background terminal.
When the monitoring terminal judges that the weight is the maximum weight, the monitoring terminal can transmit the operation command to the background terminal in real time, and simultaneously, the monitoring terminal can also receive the identification code of more than one data interface transmitted by the background terminal, wherein the identification code is preset with a mark for uniquely identifying the data interface, and the weight of the more than one data interface is smaller than the maximum weight.
Preferably, after the step B-10 and before the step B-11, the monitoring terminal is capable of transmitting the identification code acquisition request message to the background terminal to activate the background terminal to feed back the identification code acquisition request message, retrieve the identification codes of the more than one data interfaces of the connected background terminal, and feed back the identification codes of the more than one data interfaces to the monitoring terminal.
Preferably, when the background terminal determines that the weight of the data link of the monitoring terminal is the maximum weight, the background terminal can actively transmit the identification codes of more than one data interface additionally connected with the background terminal to the monitoring terminal;
or, the background terminal determines that the weight of the data link of the monitoring terminal is the maximum weight, and after the monitoring terminal transmits the control command to the background terminal, the background terminal can actively transmit the identification codes of more than one data interface additionally connected with the background terminal to the monitoring terminal.
Step B-12: the monitoring terminal transmits the time interval message to more than one data interface respectively by means of the identification codes of more than one data interface.
After receiving the identification codes of the one or more data interfaces transmitted by the background terminal, the monitoring terminal can transmit time interval messages to the one or more data interfaces respectively within the time when the identification codes of the one or more data interfaces do not transmit commands to the background terminal, wherein the start time and the end time included in each time interval message are not crossed. Therefore, each data interface can only transmit the operation command to the background terminal within the starting and stopping time acquired by the data interface, so that the time periods of transmitting the operation command by all the monitoring terminals can be ensured not to interfere with each other, and the background terminal can be efficiently operated.
After receiving an imported manipulation command for manipulating the background terminal, the monitoring terminal can firstly judge whether a weight value of a data link transmitted by the background terminal is a maximum weight value, if not, receives a time interval message transmitted by the monitoring terminal with the maximum weight value, and additionally receives a distribution value transmitted by a distribution value feedback monitoring terminal with the maximum weight value to obtain a requirement message, and in addition, the monitoring terminal can judge whether manipulation content included in the manipulation command is in a range of the distribution value, if so, the manipulation command is transmitted to the background terminal at a starting and stopping moment included in the time interval message; when the weight value of the data link transmitted by the background terminal is the maximum weight value, the monitoring terminal can directly transmit the control command to the background terminal and transmit a time period message including the start-stop moment to other monitoring terminals; therefore, the time of the operation command transmitted to the background terminal by each monitoring terminal is not conflicted, the background terminal is effectively operated, and the monitoring terminal can transmit the operation command of the operation content matched with the distribution value in the range of the distribution value, thereby preventing the monitoring terminal from operating the background terminal randomly.
The present invention has been described in an illustrative manner by the embodiments, and it should be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, but is capable of various changes, modifications and substitutions without departing from the scope of the present invention.
Claims (8)
1. The component for the low-carbon alkane dehydrogenation catalyst is characterized by comprising gallium trioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide.
2. The component for the light alkane dehydrogenation catalyst according to claim 1, wherein the weight part of the gallium sesquioxide is 12-34 parts;
the manganese dioxide accounts for 21-29 parts by weight;
the cobalt oxide accounts for 18-24 parts by weight;
the weight portion of the nickel oxide is 18-24 portions;
the weight portion of the zinc oxide is 44-52 portions;
the weight portion of the titanium dioxide is 31 to 43 portions;
the weight portion of the aluminum oxide is 24-72;
the weight portion of the potassium oxide is 12 to 16 portions;
the weight part of the cerium dioxide is 8-22 parts;
the weight portion of the molybdenum trioxide is 6 to 12.
3. A preparation method of a catalyst for dehydrogenation of light alkane is characterized by comprising the following steps:
step 1: mixing the gallium trioxide, manganese dioxide, cobalt oxide, nickel oxide, zinc oxide, titanium dioxide, aluminum oxide, potassium oxide, cerium dioxide and molybdenum trioxide together to form a mixture, grinding the mixture by using a grinder, and grinding the mixture into a granular mixture;
step 2: putting the granular mixture, the solid paraffin and the trioxadehyde glue together according to a set weight proportion condition, stirring uniformly, and obtaining a jelly after stirring uniformly;
and step 3: feeding the jelly into a pressing machine to be pressed to obtain a block;
and 4, step 4: and drying the blocky substance to obtain the catalyst for dehydrogenation of the low-carbon alkane.
4. The method of claim 3, wherein the mixture in granular form has a particle diameter of 70-74 um.
5. The method for preparing the catalyst for dehydrogenation of lower alkanes according to claim 3, wherein the drying temperature for drying is 120-230 ℃.
6. The method for preparing the catalyst for dehydrogenation of lower alkanes according to claim 3, wherein the drying device is a dryer.
7. The method for preparing the catalyst for dehydrogenation of lower alkanes according to claim 3, wherein the granular mixture, the paraffin wax and the trialdehyde glue are mixed according to the set weight ratio of (5-11): (1-9): (2-6).
8. The method of claim 3, wherein the stirring is performed by a stirrer.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790391A (en) * | 2020-07-03 | 2020-10-20 | 浙江大学 | Synthesis of Ni/Zn bimetallic oxide catalyst and application thereof in oxidative dehydrogenation reaction of n-butane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165031A (en) * | 2006-10-16 | 2008-04-23 | 罗门哈斯公司 | Integrated catalytic process for converting alkanes to alkenes and catalysts useful for same |
| CN108786798A (en) * | 2017-05-02 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of preparation method of catalyst for dehydrogenation of low-carbon paraffin |
| WO2019028018A1 (en) * | 2017-08-01 | 2019-02-07 | Purdue Research Foundation | Nickel alloy catalysts for light alkane dehydrogenation |
| CN109603898A (en) * | 2017-10-17 | 2019-04-12 | 苏州大学 | A kind of catalyst for dehydrogenation of low-carbon paraffin and the method for preparing low-carbon alkene |
| CN109833903A (en) * | 2017-11-29 | 2019-06-04 | 中国科学院大连化学物理研究所 | A kind of low-carbon alkanes anaerobic dehydrogenation alkene catalyst and its preparation and application |
-
2019
- 2019-10-30 CN CN201911041455.7A patent/CN110639544A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165031A (en) * | 2006-10-16 | 2008-04-23 | 罗门哈斯公司 | Integrated catalytic process for converting alkanes to alkenes and catalysts useful for same |
| CN108786798A (en) * | 2017-05-02 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of preparation method of catalyst for dehydrogenation of low-carbon paraffin |
| WO2019028018A1 (en) * | 2017-08-01 | 2019-02-07 | Purdue Research Foundation | Nickel alloy catalysts for light alkane dehydrogenation |
| CN109603898A (en) * | 2017-10-17 | 2019-04-12 | 苏州大学 | A kind of catalyst for dehydrogenation of low-carbon paraffin and the method for preparing low-carbon alkene |
| CN109833903A (en) * | 2017-11-29 | 2019-06-04 | 中国科学院大连化学物理研究所 | A kind of low-carbon alkanes anaerobic dehydrogenation alkene catalyst and its preparation and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790391A (en) * | 2020-07-03 | 2020-10-20 | 浙江大学 | Synthesis of Ni/Zn bimetallic oxide catalyst and application thereof in oxidative dehydrogenation reaction of n-butane |
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