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Catalyst for catalyzing hydrogenation deoxidation reaction of guaiacol and preparation method thereof

A technology of guaiacol and deoxidation reaction, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, chemical instrument and method, etc. Easy polymerization, high price of precious metals and other problems, to achieve the effect of long service life, high reactivity and low price

Active Publication Date: 2012-05-02
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

However, during the hydrodeoxygenation process, oxygen-containing compounds are easy to polymerize and coke, the service life of the catalyst is not long, and the high price of noble metals inhibits the large-scale application of this type of catalyst to a certain extent.

Method used

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  • Catalyst for catalyzing hydrogenation deoxidation reaction of guaiacol and preparation method thereof
  • Catalyst for catalyzing hydrogenation deoxidation reaction of guaiacol and preparation method thereof
  • Catalyst for catalyzing hydrogenation deoxidation reaction of guaiacol and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0022] Embodiment 1-3 is ZrO 2 -SiO 2 Preparation of Binary Composite Oxide Support

Embodiment 1

[0023] Embodiment 1, ZrO 2 -SiO 2 Preparation of Binary Composite Oxide Support

[0024] (1) 17.8 grams of ZrOCl 2 , 36.6 g Na 2 SiO 3 Configure 0.2mol / L aqueous solution respectively; to ZrOCl 2 Add ammonia water to the aqueous solution until the pH value is between 8 and 9 to prepare Zr(OH) 4 Precipitated suspension; to Na 2 SiO 3 Add NH to aqueous solution 4 NO 3 solution to a pH value of about 8 to 9 to prepare Si(OH) 4 Precipitated suspension;

[0025] (2) Zr(OH) 4 Precipitation and Si(OH) 4 The precipitates were combined and mixed, stirred, and then stood still at 333K for 6 hours for aging;

[0026] (3) Repeated suction filtration and washing with deionized water until the washing liquid does not contain Cl - ion;

[0027] (4) The precipitate obtained by filtration is dried overnight at 393K, and then roasted, the roasting temperature is 773K, and the roasting time is 5 hours to obtain ZrO with a Zr / Si molar ratio of 1:3. 2 -SiO 2 Binary composite oxide...

Embodiment 2

[0028] Example 2, ZrO 2 -SiO 2 Preparation of Binary Composite Oxide Support

[0029] With embodiment 1 method, Na 2 SiO 3 The amount of the 12.2 grams is changed to 12.2 grams, that is, ZrO with a Zr / Si molar ratio of 1:1 is prepared. 2 -SiO 2 Binary composite oxides.

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Abstract

The invention provides a cheap catalyst for catalyzing the hydrogenation deoxidization reaction of guaiacol and a preparation method thereof. The catalyst comprises the following components: a carrier ZrO2-SiO2 binary composite oxide, and two active metals of Ni and Cu, wherein the two active metals of Ni and Cu are loaded on the binary composite oxide through an immersion process. The ZrO2-SiO2 binary composite oxide which is prepared through a chemical precipitation process is used as the carrier of the catalyst, wherein the Zr / Si molar ratio is 1:1-5; and the two active metals of Ni and Cu are loaded on the carrier through the immersion process, wherein the Ni load capacity is 7-15wt%, and the Ni / Cu molar ratio is 1:0.5-1.5. The catalyst prepared in the invention has the advantages of cheap raw material, simple preparation method, high reaction activity, good carbon deposition resistance, and long service life. According to the catalytic activity evaluation of the catalyst, the conversion rate of guaiacol is near to 100%, and the top alkane yield can reach 62.7%.

Description

technical field [0001] The invention provides a catalyst for hydrogenation deoxygenation reaction and a preparation method thereof, in particular to a catalyst for catalyzing the hydrogenation deoxygenation reaction of oxygen-containing compound guaiacol. technical background [0002] Considering the importance of energy conservation and emission reduction policies and the goal of diversifying energy sources, biomass, a renewable carbon resource that can be liquefied, is being extensively studied to prepare liquid fuels. As the main component of biomass, lignin is the main by-product of lignocellulosic biomass hydrolysis and fermentation to ethanol industry and paper industry. Because it is not fully utilized, it has become an environmental pollutant and has brought great harm to the environment. huge pressure. Lignin is a natural polymer composed of phenylpropane structural units, which can be liquefied by catalyzed directional degradation to obtain liquid products. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755C10G45/06
Inventor 马隆龙张兴华王铁军张琦章青刘琪英
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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