CN102974338A - Metal-doped In2O3 composite material - Google Patents
Metal-doped In2O3 composite material Download PDFInfo
- Publication number
- CN102974338A CN102974338A CN2012104910257A CN201210491025A CN102974338A CN 102974338 A CN102974338 A CN 102974338A CN 2012104910257 A CN2012104910257 A CN 2012104910257A CN 201210491025 A CN201210491025 A CN 201210491025A CN 102974338 A CN102974338 A CN 102974338A
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- Prior art keywords
- metal
- doped
- ethanol
- composite
- propylene
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- 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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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention provides a metal-doped In2O3 composite material, characterized in that the doped metal is scandium, zirconium or nickel. In the process of preparing propylene from ethanol on the basis of the metal-doped In2O3 material provided by the invention, the material has obvious advantage in propylene selectivity, thereby being capable of improving the efficiency of preparing propylene from ethanol.
Description
Technical field
The invention belongs to the advanced material preparation field, be specifically related to a kind of metal-doped In
2O
3The application of material in the ethanol preparing propone.
Background technology
In
2O
3Be a kind of rare metal material, be commonly used in special material, metallurgy, electronic device manufacturing field, the present invention finds the In through overdoping
2O
3Material can be applicable in the process of synthesizing propylene.
Propylene is basic chemical raw materials, is widely used in various chemical industry processes.At present, the production of propylene is take petroleum resources as raw material, by obtaining in the courses of reaction such as naphtha thermal cracking, catalytic pyrolysis, dehydrogenating propane.These processes are ripe, and widely commercial Application is arranged.But raw material all depends on and is disposable, non-renewable fossil feedstock.Along with the day by day exhaustion of fossil energy in the global range, the production of propylene technology of exploitation take renewable raw materials as the basis has strategic importance.
The present invention finds based on metal-doped In
2O
3Ethanol preparing propone process on the material, this material has obvious advantage at Propylene Selectivity, can improve the efficient of ethanol preparing propone process.
Summary of the invention
The purpose of this invention is to provide the In that kind is metal-doped
2O
3The synthetic method of material and the application in ethanol synthesizing propylene process thereof.
The present invention at first provides a kind of metal-doped In
2O
3Composite, it is characterized in that the metal of described doping is scandium, zirconium or nickel.
Metal described in the composite of the invention described above will be introduced into In by dipping method
2O
3
Doping metals described in the composite of the invention described above and In
2O
3Mass ratio be 1:5-33.
Doping metals described in the composite of the invention described above and In
2O
3Atomic ratio 1:10-11:1.
The present invention provides the metal-doped In of the invention described above on the one hand
2O
3The composite manufacture method, the steps include: to get 100 weight portion In
2O
3Carrier immerses and to contain a kind of two kinds and mixes in the metal soluble-salt solution, flood after 1 hour and dries in 100-130 ° of C, then under 450-600 ° of C roasting 2-5 hour, namely gets described metal-doped In
2O
3Composite.
The definition of metal and other parameters described in this composite manufacture method or preferred with above consistent.
The present invention provides the metal-doped In of the invention described above on the one hand
2O
3Composite catalyze and synthesize the method for propylene, the method is take ethanol as reaction raw materials, the In that uses scandium, zirconium or nickel to mix
2O
3Composite be catalyst.Described metal will be introduced into In by dipping method
2O
3Described doping metals and In
2O
3Mass ratio be 1:5-33.Described doping metals and In
2O
3Atomic ratio 1:10-11:1.
Reaction condition described in the method for preparing propylene of the invention described above is fixed bed reactors, pressure 0.1-1.5MPa, temperature 400-600 ° of C, raw material weight air speed 0.1-3.0 hour
-1The preferred 0.1-0.5MPa of reaction pressure.The preferred 0.2-2.0 of raw material weight air speed hour
-1
The present invention finds based on metal-doped In
2O
3Ethanol preparing propone process on the material, this material has obvious advantage at Propylene Selectivity, can improve the efficient of ethanol preparing propone process.
The specific embodiment
The following examples will be further described the present invention, but not thereby limiting the invention.
Embodiment 1
Get 100g In
2O
3, after fully grinding, put into the aqueous solution dipping 1 hour that 100ml contains the 15g scandium nitrate, after 120 ° of C oven dry, 500 ° of C roasting 3h make catalyst A.
Embodiment 2
Get 100g In
2O
3, after fully grinding, put into the aqueous solution dipping 1 hour that 100ml contains the 10.5g zirconium chloride, after 120 ° of C oven dry, 500 ° of C roasting 3h make catalyst B.
Embodiment 3
Get 100g In
2O
3, after fully grinding, put into the aqueous solution dipping 1 hour that 100ml contains the 5g nickel nitrate, after 120 ° of C oven dry, 500 ° of C roasting 3h make catalyst C.
Embodiment 4
Get 100g In
2O
3, after fully grinding, put into the aqueous solution dipping 1 hour that 100ml contains 15g scandium nitrate and 5g nickel nitrate, after 120 ° of C oven dry, 450 ° of C roasting 3h make catalyst D.
Embodiment 5
Get 100g In
2O
3, after fully grinding, put into the aqueous solution dipping 1 hour that 100ml contains 15g scandium nitrate and 5g zirconium chloride, after 120 ° of C oven dry, 490 ° of C roasting 3h make catalyst E.
Embodiment 6
Get 100g In
2O
3, after fully grinding, put into the aqueous solution dipping 1 hour that 100ml contains 15g nickel nitrate and 10g zirconium chloride, after 120 ° of C oven dry, 560 ° of C roasting 3h make catalyst F.
Embodiment 7
Catalyst is sieved into the 40-60 order, and quality is 20g, is loaded into stainless steel reactor
In, reaction temperature is 400-600 ° of C, pressure is 0.1-0.5MPa, reaction is front with catalyst 510 ° of C activation process 1h in N2 atmosphere, then begin sample introduction after dropping to reaction temperature, ethanol or ethanol-methyl alcohol mixed material enters reactor through preheating (130-150 ° of C), and reaction velocity is 0.5-3.0h
-1, reaction condition and the results are shown in Table 1.
The metal-doped In of table 1
2O
3The reaction result of upper ethanol synthesizing propylene
Catalyst | A | B | C | D | E | F |
Reaction pressure | 0.5MPa | 0.3MPa | 0.2MPa | 0.4MPa | 0.4MPa | 0.4MPa |
Reaction temperature | 450°C | 470°C | 530°C | 550°C | 560°C | 560°C |
The raw material air speed | 0.5h -1 | 1.0h -1 | 0.8h -1 | 1.2h -1 | 1.2h -1 | 1.2h -1 |
Ethanol conversion (%) | 100 | 100 | 100 | 100 | 100 | 100 |
Ethene (%) | 21.0 | 14.0 | 16.0 | 15.0 | 15.0 | 15.0 |
Propylene (%) | 55.0 | 70.0 | 69.0 | 60.0 | 65.0 | 55.0 |
Butylene (%) | 4.0 | 6.0 | 5.0 | 10.0 | 15.0 | 15.0 |
Acetaldehyde (%) | 10.0 | 7.0 | 10.0 | 10.5 | 5.5 | 15.5 |
Acetone (%) | 10.0 | 3.0 | 5.0 | 4.5 | 4.5 | 4.5 |
Claims (4)
1. metal-doped In
2O
3Composite, it is characterized in that the metal of described doping is scandium, zirconium or nickel.
2. metal-doped In claimed in claim 1
2O
3Composite, it is characterized in that described metal will be introduced into In by dipping method
2O
3
3. metal-doped In claimed in claim 1
2O
3Composite, it is characterized in that described doping metals and In
2O
3Mass ratio be 1:5-33.
4. metal-doped In claimed in claim 3
2O
3Composite, it is characterized in that described doping metals and In
2O
3Atomic ratio 1:10-11:1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012104910257A CN102974338A (en) | 2012-11-27 | 2012-11-27 | Metal-doped In2O3 composite material |
Applications Claiming Priority (1)
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---|---|---|---|
CN2012104910257A CN102974338A (en) | 2012-11-27 | 2012-11-27 | Metal-doped In2O3 composite material |
Publications (1)
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CN102974338A true CN102974338A (en) | 2013-03-20 |
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CN2012104910257A Pending CN102974338A (en) | 2012-11-27 | 2012-11-27 | Metal-doped In2O3 composite material |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1909261A (en) * | 2006-08-28 | 2007-02-07 | 清华大学 | Titanium dioxide crystallized light absorption enhancement thin film electrode and its preparation method |
JP2011219466A (en) * | 2010-03-23 | 2011-11-04 | Tokyo Metropolitan Univ | Gold catalyst for ethanol oxidation and method for producing acetaldehyde and acetic acid using the same |
-
2012
- 2012-11-27 CN CN2012104910257A patent/CN102974338A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1909261A (en) * | 2006-08-28 | 2007-02-07 | 清华大学 | Titanium dioxide crystallized light absorption enhancement thin film electrode and its preparation method |
JP2011219466A (en) * | 2010-03-23 | 2011-11-04 | Tokyo Metropolitan Univ | Gold catalyst for ethanol oxidation and method for producing acetaldehyde and acetic acid using the same |
Non-Patent Citations (1)
Title |
---|
SHOUTA MIZUNO ET AL: "One-path and Selective Conversion of Ethanol to Propene on Scandium-modified Indium Oxide Catalysts", 《CHEM.LETT.》, vol. 41, 25 August 2012 (2012-08-25) * |
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Application publication date: 20130320 |