High productivity kolbe reaction process for transformation of fatty acids derived from plant oil and animal fat

A fatty acid, Colby technology, applied in the field of high productivity Colby reaction process, can solve problems such as reducing the yield of hydrocarbons

Active Publication Date: 2017-08-18
埃德沃克国际公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known that the presence of acetic acid reduces the yield of hydrocarbons produced by the Kelbe reaction process from the raw material sources (vegetable oils and animal fats) used to make fatty acids

Method used

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  • High productivity kolbe reaction process for transformation of fatty acids derived from plant oil and animal fat
  • High productivity kolbe reaction process for transformation of fatty acids derived from plant oil and animal fat
  • High productivity kolbe reaction process for transformation of fatty acids derived from plant oil and animal fat

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0078] Example 1 - Kolbe electrolysis reaction of fatty acids derived from tallow

[0079] 9.44 parts of fatty acid from tallow hydrolysis were added to 89.69 parts of methanol; 0.87 parts of potassium hydroxide was added to the mixture, which was then heated to 52°C in a water-jacketed vessel to give a clear solution. An electrolytic cell consisting of a platinum foil anode and a nickel cathode separated by a 1.5 mm spacing was immersed in the solution. A constant current density of 0.2A cm was used -2 . Within 1 hour, hydrocarbon products separated from the reaction mixture and accumulated at the bottom of the reactor, including coupled Kolbe electrolysis products and disproportionation products.

example 2

[0080] Example 2 - Kelby electrolysis reaction of oleic fatty acid in the presence of 0.6 wt% acetic acid based on total acid

[0081] 16.49 parts of oleic acid, 0.10 parts of acetic acid (0.6% by weight of total acids) and 0.98 parts of sodium hydroxide were dissolved in 59.47 parts of ethanol and 22.96 parts of water and heated to 50°C in a water-jacketed vessel. An electrolytic cell consisting of a platinum foil anode and a platinum foil cathode separated by a 1.5mm spacing was dipped into the solution. A constant current density of 0.1A cm was used -2 . After 50 minutes of electrolysis, an aliquot of the reaction mixture was acidified and extracted into hexane, then analyzed by gas chromatography, and the current yield and production rate were calculated (see Table 2).

example 3

[0082] Example 3 - Kolbe electrolysis reaction of oleic fatty acid at moderate current density

[0083] 16.26 parts of oleic acid and 1.15 parts of sodium hydroxide were dissolved in 53.52 parts of ethanol and 29.07 parts of water and heated to 50°C in a water-jacketed vessel. An electrolytic cell consisting of a platinum foil anode and a platinum foil cathode separated by a 1.5mm spacing was dipped into the solution. A constant current density of 0.1A cm was used -2 . After 100 minutes of electrolysis, an aliquot of the reaction mixture was acidified and extracted into hexane, then analyzed by gas chromatography and the current yield and production rate were calculated (see Table 2).

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Abstract

Oils from plants and animal fats are hydrolyzed to fatty acids for a Kolbe reaction. The invention relates to a high productivity Kolbe reaction process for electrochemically decarboxylating C4-C28 fatty acids using small amounts of acetic acid to lower anodic passivation voltage and synthesizing C6-C54 hydrocarbons. The C6-C54 undergo olefin metathesis and/or hydroisomerization reaction process to synthesize heavy fuel oil, diesel fuel, kerosene fuel, lubricant base oil, and linear alpha olefin products useful as precursors for polymers, detergents, and other fine chemicals.

Description

[0001] Cross References to Related Applications [0002] This application is an International PCT application claiming the benefit of non-provisional U.S. Serial No. 14 / 331,390 filed on July 15, 2014 and granted as U.S. Patent No. 8,961,775 on February 24, 2015, the entire contents of which are hereby Incorporated herein by reference. technical field [0003] Oils from vegetable and animal fats are hydrolyzed to fatty acids by the Kolbe reaction. The present invention relates to a high productivity Kelbe reaction process for electrochemical decarboxylation of C4-C28 fatty acids, which uses a small amount of acetic acid to lower the anode passivation voltage and synthesize C6-C54 hydrocarbons. C6-C54 synthesize heavy fuel oil, diesel fuel, kerosene fuel, lubricating oil base oil and linear α-olefin products through olefin metathesis and / or hydroisomerization reaction process, which are used as polymers, detergents and other fine Precursors of chemicals. Background techniqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/10C07C1/207C10G3/00C25B3/29C25B3/23
CPCC10G3/00C07C6/04C10M177/00C07C2531/24C10G45/62C10G45/64C10G2400/02C10G2400/06C10M105/04Y02P30/20C07C2/00C07C6/10C25B3/29C07C11/02C07C9/14C07C9/22C07C11/12
Inventor 钱德拉谢卡尔·H·乔西迈克尔·格伦·霍纳格拉哈姆·托马斯·桑顿·吉布森兹米特里·马列维奇
Owner 埃德沃克国际公司
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