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CN102974338A - Metal-doped In2O3 composite material - Google Patents

Metal-doped In2O3 composite material Download PDF

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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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metal
doped
ethanol
composite
propylene
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洪仁作
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements 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

A kind of metal-doped In 2O 3Composite
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
Figure BDA00002476887800031
Figure BDA00002476887800032
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.
CN2012104910257A 2012-11-27 2012-11-27 Metal-doped In2O3 composite material Pending CN102974338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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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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Citations (2)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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