A device for electrohydrogenating soybean oil in a supercritical CO2 state

An electric hydrogenation of soybean oil, supercritical technology, applied in electrolysis components, electrolysis process, fatty acid hydrogenation, etc., can solve problems such as difficult operation, adverse effects, high temperature of production conditions, etc.

Active Publication Date: 2015-08-26
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
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  • Description
  • Claims
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Problems solved by technology

The production conditions are high temperature, high hydrogen pressure, difficult to operate, and prone to danger
In addition, the hydrogenated oil produced by the traditional hydrogenation process has catalyst residues, and a large amount of trans fatty acids are produced during the reaction process, which will cause adverse effects on the human body

Method used

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  • A device for electrohydrogenating soybean oil in a supercritical CO2 state
  • A device for electrohydrogenating soybean oil in a supercritical CO2 state
  • A device for electrohydrogenating soybean oil in a supercritical CO2 state

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specific Embodiment approach 1

[0009] Specific implementation mode one: combine figure 1 , figure 2 , image 3 Illustrate the present invention, the present invention as figure 1 The shown includes a stainless steel reaction kettle (1), a stainless steel reaction tank (2), a copper electrode (3), and a non-conductive silicon gasket (4); the stainless steel reaction tank (2) is located in the stainless steel reaction tank (1), and the exchange membrane (such as image 3 ) separated from the middle, such as figure 2 shown; the copper electrodes (3) are respectively inserted into the stainless steel reaction pool (2), located on the proton exchange membrane (such as image 3 ) on both sides, and it is separated from the stainless steel wall of the stainless steel reactor (1) by a non-conductive silicon gasket (4) to prevent short circuit. The catalyst is attached to the proton exchange membrane, and the mixed solution of soybean oil and sodium formate and sulfuric acid are respectively loaded into both ...

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Abstract

The invention relates to a device for electrically hydrogenating soybean oil in supercritical CO2 state. The device is characterized in that hydrogen ions are mainly produced by electrolyzing electrolyte solution, and the hydrogen ions pass through a proton exchange membrane and further act on the soybean oil with a catalyst, so that the soybean oil is hydrogenated. The problems of the traditional technology, such as high hydrogen pressure and difficulty in analysis on the catalyst, are solved; because the supercritical fluid has better mass transfer performance, extremely high temperature is not needed for reaction, and moreover, formation of trans-fatty acids is restrained to a certain degree. Soybean oil is electrically hydrogenated in supercritical CO2 state through the method using a reaction device for electrically hydrogenating soybean oil in supercritical CO2 state, wherein the reaction device comprises a device shell, a sealing cover, a reaction tank and an electrode, the reaction tank is a reaction place for hydrogenation of soybean oil, the device shell provides supercritical reaction conditions for the reaction, and the electrode is used for providing current environment for the reaction.

Description

technical field [0001] The present invention relates to a kind of supercritical CO 2 Equipment for electrohydrogenating soybean oil under state. Background technique [0002] Hydrogenated vegetable oil can be used as the raw material of margarine and shortening, and has a wide range of uses and huge market demand in the food industry. Fat hydrogenation refers to the process of using reducing nickel and other metals as catalysts to attach hydrogen to the double bonds of unsaturated fatty acids in triglycerides. There are two types of oil hydrogenation: selective hydrogenation and non-selective hydrogenation: selective hydrogenation is to make the fatty acid content, solid fat and trans The content of the acid and the position and content of the double bond meet certain requirements of the hydrogenation process; non-selective hydrogenation only refers to extreme hydrogenation, which reduces the iodine value of the oil to a minimum, and its characteristic is that its selectiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11C3/12C25B3/00
CPCY02P20/54
Inventor 于殿宇郑环宇江连洲王立琦李相昕张旭齐晓芬刘欣张青李中宾胡立志刘丹怡奚会松
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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