Catalytic system for producing medium-chain fatty acid or/and alcohol, preparation method and application thereof

A medium-chain fatty acid, catalytic system technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. Good mechanical stability, promotion of medium chain fatty acids and/or alcohols, long particle life effect

Active Publication Date: 2020-09-11
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In conclusion, at present, the process of producing medium-chain fatty acids and alcohols using microbial catalysis is slow and cannot meet the requirements of industry

Method used

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  • Catalytic system for producing medium-chain fatty acid or/and alcohol, preparation method and application thereof
  • Catalytic system for producing medium-chain fatty acid or/and alcohol, preparation method and application thereof
  • Catalytic system for producing medium-chain fatty acid or/and alcohol, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A method for preparing a catalytic system for producing medium-chain fatty acids or / and alcohols, the specific steps are as follows:

[0054] 1) Weigh chloroplatinic acid, dissolve it in ethylene glycol, stir to make it evenly dissolved, and obtain an orange-red clear and transparent solution;

[0055] 2) Weigh Fe 2 O 3 Powder, drop the solution obtained in step 1) into Fe 2 O 3 In, stir to mix well;

[0056] 3) Transfer the materials prepared in step 2) to a drying box and dry in an air atmosphere;

[0057] 4) After drying the catalyst in step 3), it is reduced with synthesis gas at a higher temperature to obtain an inorganic solid catalyst (iron-supported platinum catalyst);

[0058] 5) Grind the above-mentioned inorganic solid catalyst (iron-supported platinum catalyst) and put it into the activated sludge obtained by long-term domestication of acetic acid and CO to obtain a catalytic system for producing medium-chain fatty acid or / and alcohol.

[0059] In this application, act...

Embodiment 2

[0078] A preparation method of a catalytic system for producing medium-chain fatty acids or / and alcohols, the specific steps are as follows:

[0079] 1) Weigh dinitrosodiamminoplatinum nitric acid solution, dissolve the dinitrosodiammineplatinum nitric acid solution in water, stir to dissolve uniformly, and obtain a colorless, clear and transparent solution;

[0080] 2) Weigh Fe 3 O 4 Powder, drop the solution obtained in step 1) into Fe 3 O 4 In, stir to mix well;

[0081] 3) Transfer the prepared in step 2) to a drying box and dry it in an air atmosphere;

[0082] 4) The dried catalyst in step 3) is reduced with synthesis gas at a higher temperature to obtain an inorganic solid catalyst (iron-supported platinum catalyst).

[0083] 5) Grind the above-mentioned inorganic solid catalyst (iron-supported platinum catalyst) and put it into the activated sludge obtained by long-term domestication of acetic acid and CO to obtain a catalytic system for producing medium-chain fatty acid or / and ...

Embodiment 3

[0102] A preparation method of a catalytic system for producing medium-chain fatty acids or / and alcohols, the specific steps are as follows:

[0103] 1) Weigh the palladium nitrate solution, dissolve the palladium nitrate solution in water, stir to dissolve evenly, and obtain a dark orange solution;

[0104] 2) Weigh Al 2 O 3 Powder, drop the solution obtained in step 1) into Al 2 O 3 In the medium, stir to mix well to obtain a dark red paste;

[0105] 3) Transfer the dark red paste in step 2) to a drying box and dry it in an air atmosphere;

[0106] 4) The dried catalyst in step 3) is reduced with hydrogen at a higher temperature to obtain an aluminum-supported palladium catalyst;

[0107] 5) The aluminum-supported palladium obtained above is ground and put into activated sludge obtained by long-term domestication of acetic acid and CO to obtain a catalytic system for producing medium-chain fatty acids or / and alcohols.

[0108] Application method: The shaker reactor containing the above...

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Abstract

The invention discloses a catalytic system for producing medium-chain fatty acid or/and alcohol, and a preparation method and application thereof. The catalytic system comprises an inorganic solid catalyst and anaerobic microorganisms for producing medium-chain fatty acid or/and alcohol; the inorganic solid catalyst comprises a main catalyst and an auxiliary agent; and the main catalyst comprisesone or two of metal oxide and metal carbide. The inorganic solid catalyst comprises a main catalyst and an auxiliary agent, the synthesis process is simple, and an excessive impregnation method is adopted for loading; the inorganic solid catalyst disclosed by the invention comprises the main catalyst and the auxiliary agent, so that CO can be adsorbed and a formic acid or acetic acid intermediatecan be generated in a reaction system for producing medium-chain fatty acid or/and alcohol, and the aim of promoting microbial reaction to generate medium-chain fatty acid and/or alcohol is achieved;and the inorganic solid catalyst provided by the invention is long in particle life and good in mechanical stability.

Description

Technical field [0001] The invention relates to a catalytic system, preparation method and application. More specifically, it relates to a catalytic system, preparation method and application for producing medium-chain fatty acid or / and. Background technique [0002] With the rapid development of global industrialization, while bringing continuous enrichment of material life, the increasing scarcity of fossil energy has become a thorny issue that all countries have to face. Therefore, renewable energy and chemicals have received widespread attention. Naturally, new biotechnology that realizes waste recycling and utilization has become a hot research direction. Under the action of anaerobic microorganisms, organic waste is converted into short-chain volatile fatty acids, lactic acid, and hydrogen as intermediate products, and these intermediate products are further converted into methane-rich biogas. However, although the preparation of methane can alleviate the increasingly se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22B01J23/89B01J23/44B01J23/652B01J31/00B01J37/02B01J37/18C12P7/02C12P7/64
CPCB01J23/44B01J23/6525B01J23/8906B01J23/8913B01J23/8926B01J23/8946B01J23/8986B01J27/22B01J31/00B01J37/0201B01J37/18C12P7/02C12P7/6409
Inventor 张燚吉嘉铖王雯刘超刘意
Owner BEIJING UNIV OF CHEM TECH
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