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A kind of synthetic gas to make detergent higher alcohol catalyst and its preparation method and application

A technology for catalyst and synthesis gas, which is applied in catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc. Restricted ASF distribution and other problems, to achieve the effect of good activity, mild reaction conditions, and improved selectivity

Active Publication Date: 2022-02-11
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current high-carbon alcohol catalysts for syngas production still have problems such as poor catalyst stability; low alcohol selectivity and many by-products; low content of high-carbon alcohol in detergents, limited by ASF distribution, and wide distribution.

Method used

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  • A kind of synthetic gas to make detergent higher alcohol catalyst and its preparation method and application
  • A kind of synthetic gas to make detergent higher alcohol catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] According to the catalyst composition, 0.242g Cu(NO 3 ) 2 ·3H 2 O, 4.04g Fe(NO 3 ) 3 9H 2 O, 0.291g Co(NO 3 ) 2 ·6H 2 Dissolve O in a mixture of 100mL ethanol and 20mL DMF and stir evenly to make a solution with a total metal molar concentration of 0.1mol / L, add 1.5g polyvinylpyrrolidone and stir evenly, then transfer the solution into a self-pressurized reactor at 170°C Stir and heat the reaction for 5 hours to obtain a well-dispersed nanoparticle suspension after the reaction;

[0029] Add 100mL of ethanol and 100mL of deionized water to disperse the above particle suspension, add 1.5g of cetyltrimethylammonium bromide, adjust the pH value to 9 with ammonia water, slowly add 5g of ethyl orthosilicate while stirring, After reacting for 12 hours, washing 4 times, drying, and roasting at 550°C, the catalyst powder was obtained;

[0030] Weigh the above catalyst powder and use CsNO 3impregnated with an equal volume of aqueous solution, dried at 80°C, and calcine...

Embodiment 2

[0033] According to the catalyst composition, 0.968g Cu(NO 3 ) 2 ·3H 2 O, 2.424g Fe(NO 3 ) 3 9H 2 O, 0.582g Co(NO 3 ) 2 ·6H 2 Dissolve O in a mixture of 100mL ethanol and 20mL DMF and stir evenly to make a solution with a total metal molar concentration of 0.1mol / L, add 1.5g polyvinylpyrrolidone and stir evenly, then transfer the solution into a self-pressurized reactor at 170°C Stir and heat the reaction for 5 hours to obtain a well-dispersed nanoparticle suspension after the reaction;

[0034] Add the above particle suspension to 100mL ethanol and 100mL deionized water to disperse, add 1.5g octadecyltrimethylammonium bromide, adjust the pH value to 9 with ammonia water, slowly add 7g ethyl orthosilicate while stirring, After reacting for 12 hours, washing 4 times, drying, and roasting at 550°C, the catalyst powder was obtained;

[0035] Weigh the above catalyst powder and use K 2 CO 3 impregnated with an equal volume of aqueous solution, dried at 80°C, and calcine...

Embodiment 3

[0038] According to the catalyst composition, 0.726g Cu(NO 3 ) 2 ·3H 2 O, 2.828g Fe(NO 3 ) 3 9H 2 O, 0.582g Ni(NO 3 ) 2 ·6H 2 Dissolve O in a mixture of 100mL ethanol and 20mL DMF and stir evenly to make a solution with a total metal molar concentration of 0.1mol / L, add 1.5g polyvinylpyrrolidone and stir evenly, then transfer the solution into a self-pressurized reactor at 180°C Stir and heat the reaction for 3 hours to obtain a well-dispersed nanoparticle suspension after the reaction;

[0039] Add 100mL of ethanol and 100mL of deionized water to disperse the above particle suspension, add 3g of octadecyltrimethylammonium bromide, adjust the pH value to 9 with ammonia water, slowly add 5g of ethyl orthosilicate under stirring conditions, and react After 12 hours, after washing 4 times, drying, and roasting at 550°C, the catalyst powder was obtained;

[0040] Weigh the above catalyst powder, use Cs 2 CO 3 impregnated with an equal volume of aqueous solution, dried a...

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Abstract

The invention relates to the field of high-carbon alcohols produced from syngas, and relates to a catalyst for the production of high-carbon alcohols from syngas, wherein the catalyst is a carrier S-confined nano-CuFeM 1 M 2 structure, where M 1 It is a mixture of one or several elements of Co, Zn, Ni, Mn, M 2 It is a mixture of one or several elements of Na, K, Cs, and S is SiO 2 , Al 2 O 3 , ZrO 2 , TiO 2 One or several mixtures; Fe / Cu molar ratio (0.01‑30): 1, M 1 / Cu molar ratio (0.01‑30): 1; calculated in mass percentage, M 2 It accounts for 0.01%~30% of the total amount of the catalyst, and S accounts for 3%~92% of the total amount of the catalyst. The present invention also relates to the preparation method and application of the catalyst.

Description

technical field [0001] The invention relates to the field of producing high-carbon alcohols from syngas, in particular to a catalyst for producing high-carbon alcohols from syngas to scrubbers and its preparation method and application. [0002] technical background [0003] High-carbon alcohols, also known as high-carbon fatty alcohols, generally refer to monohydric alcohols with more than 6 carbon atoms. According to the use and carbon chain length, C12-C20 higher carbon alcohol is also called detergent alcohol. Detergent alcohol is an important surfactant raw material. About 90% of the C12-C20 alcohol in the world is used to produce surfactants. Detergent alcohol is mainly used to synthesize fatty alcohol polyoxyethylene ether (AE), alcohol ether sulfate ( AES) and fatty alcohol sulfate (AS), accounting for more than 80%, are derivatives of detergent alcohol surfactants, with wide cleaning range, strong decontamination ability, good low-temperature cleaning and heavy-duty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/78B01J23/80B01J23/889B01J37/02C07C29/156C07C31/125
CPCB01J37/0201B01J23/78B01J23/80B01J23/8892C07C29/156B01J35/23C07C31/125
Inventor 房克功张明伟穆晓亮李文斌赵璐
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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