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Catalyst applied to medium-pressure liquid-phase hydrogenation of fatty acid methyl ester for preparation of fatty alcohol

A technology for fatty acid methyl ester and catalyst, which is applied in the field of catalyst production and application, can solve the problems of complex addition of components, difficult industrial application, complicated catalyst preparation, etc., and achieves the effects of easy industrialization and use, good industrial application prospects and good environmental benefits.

Inactive Publication Date: 2016-11-23
南京博明科技有限责任公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the catalyst has good catalytic activity and is a substitute for the Cu / Cr catalyst, the preparation of the catalyst is cumbersome, the required additives are complex, and industrial application is difficult

Method used

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  • Catalyst applied to medium-pressure liquid-phase hydrogenation of fatty acid methyl ester for preparation of fatty alcohol

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0036] (1) 90g of copper nitrate, 35g of zinc nitrate, and 76g of aluminum nitrate are dissolved in water to prepare a solution containing 12% of solute (total weight percentage).

[0037] (2) after the solution obtained in the step (1) is stirred and warmed up to 50° C., add dropwise a sodium carbonate solution containing 11% sodium carbonate (weight percent) to the solution, after the pH of the solution is adjusted to 8, aging for 4 hours, A sol-gel product is obtained, and a gel precipitate is obtained after part of the water is sucked out under negative pressure and vacuum.

[0038] (3) After filtering, washing and drying the product obtained in step (2), grind it into powder, add 10.7g of alumina and a small amount of graphite to mix evenly, and perform tablet molding. Roasting at 500° C. for 3 hours to obtain a catalyst for catalytic hydrogenation of fatty acid methyl ester to fatty alcohol.

[0039] The catalyzer that is used for fatty acid methyl ester catalytic hydro...

example 2

[0042] (1) 100g of copper nitrate, 40g of zinc nitrate, and 80g of aluminum nitrate are dissolved in water to prepare a solution containing 15% of solute (total weight percentage).

[0043] (2) after the solution obtained in the step (1) is stirred and warmed up to 50° C., add dropwise a sodium carbonate solution containing sodium carbonate (weight percent) 10% to the solution, after the pH of the solution is adjusted to 10, aging for 4 hours, A sol-gel product is obtained, and a gel precipitate is obtained after part of the water is sucked out under negative pressure and vacuum.

[0044] (3) Filter, wash and dry the product obtained in step (2), grind it into powder, add 11 g of alumina and a small amount of graphite to mix evenly, and perform tablet molding. Roasting at 400° C. for 4 hours to obtain a catalyst for catalytic hydrogenation of fatty acid methyl ester to fatty alcohol.

[0045]The catalyzer that is used for the catalytic hydrogenation of fatty acid methyl ester...

example 3

[0048] (1) 120g of copper nitrate, 50g of zinc nitrate, and 90g of aluminum nitrate are dissolved in water to prepare a solution containing 20% ​​solute (total weight percentage).

[0049] (2) after the solution obtained in the step (1) is stirred and warmed up to 55° C., add dropwise a sodium carbonate solution containing 12% sodium carbonate (weight percentage) to the solution, after the pH of the solution is adjusted to 9, aging for 5 hours, A sol-gel product is obtained, and a gel precipitate is obtained after part of the water is sucked out under negative pressure and vacuum.

[0050] (3) After filtering, washing and drying the product obtained in step (2), grind it into powder, add 11.6g of alumina and a small amount of graphite to mix evenly, and perform tablet molding. Roasting at 450° C. for 4 hours to obtain a catalyst for catalytic hydrogenation of fatty acid methyl ester to fatty alcohol.

[0051] The catalyzer that is used for fatty acid methyl ester catalytic hy...

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Abstract

The invention discloses a catalyst applied to medium-pressure liquid-phase hydrogenation of fatty acid methyl ester for preparation of fatty alcohol. The catalyst consists of the following components (in percentage by weight): 10 to 60 percent of copper oxide, 5 to 40 percent of zinc oxide and 0 to 80 percent of alumina. According to the catalyst applied to medium-pressure liquid-phase hydrogenation of the fatty acid methyl ester for preparation of the fatty alcohol, the copper oxide is a main catalytic active component, the zinc oxide is a catalyst promoter component, and alumina is either a catalyst promoter component or a carrier. Each component synergistically acts to achieve high catalytic activity, high selectivity and high stability. Moreover, the catalyst applied to medium-pressure liquid-phase hydrogenation of the fatty acid methyl ester for preparation of the fatty alcohol contains fewer types of components, and each component has less influence and pollution to the environment, so that good environmental benefits are created. The catalyst applied to medium-pressure liquid-phase hydrogenation of the fatty acid methyl ester for preparation of the fatty alcohol is very applied to a process for catalytically hydrogenating the fatty acid methyl ester to prepare the fatty alcohol, is suitable to be industrially popularized and applied, and has broad industrial application prospect.

Description

technical field [0001] The invention relates to the production and application of a catalyst in chemical engineering, in particular to the production and application of a catalyst suitable for the medium-pressure liquid-phase hydrogenation of fatty acid methyl ester to prepare fatty alcohol. Background technique [0002] Fatty alcohol is an important basic raw material for the production of surfactants and lubricants. Using the hydroxyl functional group in its molecular structure, it can react with a variety of compounds to obtain fatty alcohol derivatives that are widely used. [0003] Due to the high price of petroleum products, the development of the synthetic fatty alcohol industry using olefins as raw materials has stagnated, and the demand for fatty alcohol in Asia and the Americas has increased. The development momentum of the natural fatty alcohol industry has gradually become stronger, and the production scale has continued to expand. The ratio of production capacit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80C07C29/149C07C31/125
Inventor 陈锡武肖溪修钟广最陈伟刘鹏飞张文林赵爱华戴正平
Owner 南京博明科技有限责任公司
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