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Method for preparing ethanol through hydrogenation of acetate

A technology for hydrogenation of acetate and production of ethanol, which is applied to chemical instruments and methods, preparation of hydroxyl compounds, preparation of organic compounds, etc., can solve the problems of low conversion rate and selectivity of hydrogenation of acetate, improve service life, Pollution reduction, good selectivity

Active Publication Date: 2016-04-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a kind of method that is used for the hydrogenation of acetate to prepare ethanol, and this method solves the problems such as low conversion rate and selectivity of hydrogenation of acetate in the prior art

Method used

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  • Method for preparing ethanol through hydrogenation of acetate
  • Method for preparing ethanol through hydrogenation of acetate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Weigh 50g of nylon-6 particles (Baling Petrochemical, BL2340-H) and place it in the copper-aluminum alloy powder. The Cu content in the copper-aluminum alloy is 50wt%, and the Al content is 50wt%. Molding at 220°C and pressure of 7 MPa for 10 minutes, take it out and cool it, sieve, and sieve out the spherical particles, the surface of the particles is completely covered by copper-aluminum alloy powder, and the supported catalyst is obtained, weighing 210g;

[0051] (2) Configure 400g of 20% NaOH aqueous solution with deionized water, add 80g of the catalyst obtained in step (1), keep the temperature at 85°C, and filter the solution after 4 hours to obtain an activated supported catalyst, and the copper metal loading in the final catalyst It is 45wt%, and after washing to near neutrality, it is stored in deionized water for later use.

Embodiment 2

[0053] (1) Mold nylon-6 (Baling Petrochemical, BL2340-H) with a flat vulcanizer at a temperature of 250°C and a pressure of 7MPa for 10mins to form a sheet with a thickness of about 2mm;

[0054] (2) Get a piece of 20g nylon-6 sheet material, spread one deck copper-aluminum alloy powder on the upper and lower sides of the sheet material, Cu content is 50wt% in the copper-aluminum alloy, and Al content is 50wt%, put into flat vulcanizer, at temperature 220 Molding for 10 minutes under the condition of ℃ and pressure of 7MPa, take out and cool, the upper and lower surfaces of the nylon-6 sheet are covered with copper-aluminum alloy powder, and then the supported catalyst sheet is obtained, weighing 180g;

[0055] (3) The catalyst sheet is mechanically cut into particles with an average particle size of about 3-5mm;

[0056] (4) Configure 20% NaOH aqueous solution 400g with deionized water, add step (3) gained catalyst 80g, keep temperature 85 ℃, filter out solution after 8 hours...

Embodiment 3

[0058] (1) Mold nylon-6 (Baling Petrochemical, BL2340-H) with a flat vulcanizer at a temperature of 250°C and a pressure of 7MPa for 10mins to form a sheet with a thickness of about 2mm;

[0059] (2) Take a 20g nylon-6 sheet, spread a layer of copper-aluminum alloy powder on the top and bottom of the sheet, the Cu content in the copper-aluminum alloy is 45wt%, the Al content is 50wt%, and the Mg content is 5wt%, put it into a flat plate for vulcanization Molded at 220°C and 7MPa for 10 minutes, took it out and cooled it, and the upper and lower surfaces of the nylon-6 sheet were covered with copper-aluminum alloy powder to obtain a supported catalyst sheet, weighing 180g;

[0060] (3) The catalyst sheet is mechanically cut into particles with an average particle size of about 3-5 mm;

[0061] (4) Configure 20% NaOH aqueous solution 400g with deionized water, add step (3) gained catalyst 80g, keep temperature 85 ℃, filter out solution after 8 hours, promptly obtain the loaded c...

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Abstract

The present invention discloses a method for preparing ethanol through hydrogenation of acetate. According to the present invention, in the presence of hydrogen, acetate contacts an activated composite catalyst in a fixed bed reactor to prepare ethanol at a reaction temperature of 100-200 DEG C under a reaction pressure of 1.0-5.0 MPa at an acetate liquid space velocity of 0.1-2 h<-1>, wherein the loaded catalyst comprises an organic polymer material carrier and Rainey alloy particles loaded on the organic polymer material carrier surface, and the Rainey alloy comprises Rainey metal copper and an element aluminum capable of being leached. According to the present invention, the loaded catalyst can load more active metals, the loaded active metals are exposed to the surface of the plastic carrier, such that the utilization rate of the active metal in the loaded catalyst is high; and during the preparation process, no high-temperature treatment process exists, such that the catalyst activity reducing caused by the copper grain aggregation during the activation process is effectively reduced, and high reaction activity and high stability are provided.

Description

technical field [0001] The invention relates to a method for preparing ethanol through catalyzed hydrogenation of acetate, in particular to preparing ethanol through catalyzed hydrogenation of acetate with a loaded catalyst. Background technique [0002] Ethanol, commonly known as alcohol, its structural formula is CH 3 CH 2 Oh. Ethanol has a wide range of uses and is widely used in food, chemical, pharmaceutical, dye, fuel, national defense and other industries. Ethanol is a good solvent, often used in the extraction of pigments in plants or medicinal ingredients in them. Ethanol with a volume fraction of 75% is commonly used as a medical disinfectant in medical treatment. As an important class of chemical raw materials, ethanol can be used to produce chemical raw materials such as acetaldehyde, ether, ethyl acetate, ethylamine, etc. It is also a raw material for the production of dyes, paints, detergents and other products. In addition, ethanol is also an important cl...

Claims

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Application Information

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IPC IPC(8): C07C31/08C07C29/149B01J31/06
Inventor 吴佳佳蒋海斌鲁树亮张晓红田保亮乔金樑王秀玲黄龙彭晖王国清唐国旗杨溢戴伟
Owner CHINA PETROLEUM & CHEM CORP
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