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A kind of wood vinegar liquid hydrogenation catalyst and the technology that ethanol is catalyzed by it

A technology of wood vinegar and catalyst, which is applied in the field of bioenergy conversion, can solve the problems of low ethanol yield and complex by-products, and achieve the effect of improving catalytic ability, good catalytic performance, and ensuring the ability of catalytic hydrogenation

Active Publication Date: 2022-01-28
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved in the present invention is to overcome the defects of low ethanol yield and complicated by-products in the existing process for synthesizing ethanol, and then provide a process for synthesizing ethanol by hydrogenation of wood vinegar and the catalyst used

Method used

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  • A kind of wood vinegar liquid hydrogenation catalyst and the technology that ethanol is catalyzed by it
  • A kind of wood vinegar liquid hydrogenation catalyst and the technology that ethanol is catalyzed by it

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Embodiment 1

[0060] The present embodiment provides a kind of preparation method of catalyst, comprising:

[0061] Mix copper sulfate, zinc sulfate, iron nitrate, nickel nitrate, calcium nitrate, barium nitrate, lanthanum chloride and cerium chloride with water, stir evenly to obtain an impregnating solution, put zirconia in the impregnating solution, at a temperature of 35 ℃, impregnated for 10 h, filtered, and the solid was calcined at 800 °C for 1 h to obtain catalyst A.

[0062] Wherein, in catalyst A, CuO, ZnO, Fe2O3, NiO, CaO, BaO, La2O3 and CeO2 account for 1wt%, 2wt%, 2wt%, 2wt%, 1wt%, 2wt%, 0.5wt% and 0.5wt% of the catalyst mass respectively wt%.

Embodiment 2

[0064] The present embodiment provides a kind of preparation method of catalyst, comprising:

[0065] Mix copper chloride, zinc chloride, ferric chloride, nickel chloride, cobalt chloride, calcium chloride, magnesium chloride, barium chloride and lanthanum chloride with deionized water, stir evenly to obtain impregnation solution, and zirconia Place in the impregnating solution, impregnate for 8 hours at a temperature of 50°C, filter, and roast the solid at a temperature of 600°C for 1 hour to obtain catalyst B.

[0066] Wherein, in the catalyst B, CuO, ZnO, Fe2O3, NiO, CoO, CaO, MgO, BaO and La2O3 respectively account for 1wt%, 1wt%, 1wt%, 3wt%, 3wt%, 2wt%, 2wt% of the catalyst mass, 2wt% and 3wt%.

Embodiment 3

[0068] The present embodiment provides a kind of preparation method of catalyst, comprising:

[0069] Mix copper chloride, zinc chloride, cobalt chloride, nickel chloride, calcium chloride, barium chloride, lanthanum chloride and cerium chloride with deionized water, stir evenly to obtain an impregnating solution, and place alumina in In the impregnating solution, at a temperature of 40°C, impregnate for 10h, filter, and roast the solid at a temperature of 700°C for 1h to obtain catalyst C.

[0070] Wherein, in the catalyst C, CuO, ZnO, CoO, NiO, CaO, BaO, La2O3 and CeO2 respectively account for 3wt%, 2wt%, 1wt%, 2wt%, 2wt%, 2wt%, 1wt% and 1wt% of the catalyst mass .

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Abstract

A wood vinegar hydrogenation catalyst provided by the invention, one or more active components selected from CuO, ZnO, Fe2O3, CoO and NiO can effectively catalyze the hydrogenation of organic acids in wood vinegar Generate ethanol; one or several of CaO, BaO and MgO are additives A, and La2O3 and / or CeO2 are additives B. The synergistic effect can not only improve the catalytic ability of active components to catalyze the hydrogenation of organic acids to generate ethanol, but also make It has good catalytic performance on methanol, which can make methanol carbonylation and hydrogenation to generate ethanol, and can inhibit the adverse effects of other components in the wood vinegar on the catalyst, effectively ensuring the catalyst's ability to catalyze hydrogenation. The process for synthesizing ethanol through the hydrogenation of wood vinegar using the above-mentioned catalyst has an ethanol yield of more than 85%.

Description

technical field [0001] The invention relates to the technical field of bioenergy conversion, in particular to a process for preparing ethanol and co-producing propanol through catalytic hydrogenation using wood vinegar as a raw material and a catalyst used in the process. Background technique [0002] Ethanol (Ethanol) commonly known as alcohol, the molecular formula is C 2 h 6 O is a colorless liquid at normal temperature and pressure. As a traditional chemical raw material, ethanol is widely used in chemical industry, food, beverage, military industry, medicine and health and other fields. At the same time, ethanol has a high combustion value (26900KJ / Kg). With the continuous shortage of petroleum resources and the continuous improvement of environmental protection, ethanol has received more and more attention as a clean fuel. As of 2010, my country has become the third largest producer of fuel ethanol in the world after the United States and Brazil. [0003] At presen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/83C07C31/08C07C29/149C07C31/10
CPCB01J23/002B01J23/83C07C29/149B01J2523/00B01J2523/17B01J2523/23B01J2523/25B01J2523/27B01J2523/3706B01J2523/3712B01J2523/842B01J2523/847B01J2523/22B01J2523/845C07C31/08C07C31/10
Inventor 林科赵文涛
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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