Preparation method of edible oil leaching agent

A manufacturing method and technology of extracting agent, applied in the direction of edible oil/fat, application, food science, etc., can solve the problems of not meeting the international level requirements of the food industry, and achieve the effect of human body safety and high product quality

Inactive Publication Date: 2011-10-12
广州赫尔普化工有限公司
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Problems solved by technology

The standard still does not meet the international level requirements of the food industry

Method used

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  • Preparation method of edible oil leaching agent

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Embodiment Construction

[0018] The present invention carries out according to the following procedures:

[0019] 1. Aromatic raffinate oil from petroleum refining (its main components are C6-C8 alkanes, a certain amount of naphthenes and a small amount of aromatics) enters the fiber membrane contactor, and the sulfolane carried by the aromatics raffinate is removed by water washing. For sulfur removal, the operating conditions are that the ratio of oil to water is 10:2~4, the operating temperature is 40°C, the operating pressure is 0.1~1.0MPa, and the pressure drop of the fiber membrane contactor is less than 0.07 MPa. The oil phase coming out of the fiber membrane contactor passes through molecular sieve facilities to remove water, so as to achieve the purpose of sulfur removal, and its water content is controlled to be less than 100PPM.

[0020] 2. Put the desulfurized and dehydrated raw materials into the hydrogenation reactor, the reaction pressure is 1.0~2.5MPa, the reaction temperature is 150°C...

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Abstract

The invention relates to a preparation method of an edible oil leaching agent, in particular to a preparation method of the leaching agent used in edible oil industries; and the preparation method comprises the following steps of: taking aromatic raffinate oil refined by petroleum as a raw material, and by using a fibrous membrane contactor, carrying out washing and desulfuration, dehydration, hydrogenation deolefination, hydrogenation dearomatization, distillation and the like so as to obtain the leaching agent with high quality. The preparation method has the advantages of increasing the product quality and recovery rate of a solvent, decreasing residual oil in oil residuals, reducing the solvent loss and energy consumption, being beneficial to increasing the quality of oil and oil residuals, having no influence on environments and being safe to human bodies.

Description

technical field [0001] The invention relates to a manufacturing method of a leaching agent used in petrochemical and human edible oil industries. Background technique [0002] Human edible oils are extracted from oil plants. The earliest method is to extract by pressing. In order to improve the oil yield, leaching is gradually adopted. Developed to the present most of the extraction of vegetable oils has been the use of solvent extraction - leaching. [0003] my country currently produces more than 20 million tons of edible oil per year. According to industrial formula estimates, at least more than 100,000 tons of edible oil extraction solvent will be consumed every year; the extraction process of edible oil first uses leaching agents to soak soybeans, peanuts and other oily plants. Then the leached crude oil is processed into edible oils of various grades, and the leaching solvent is essential for the extraction of edible oil. With the continuous improvement of the society...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14C11B1/10A23D9/02
Inventor 张官云梁定球肖兴
Owner 广州赫尔普化工有限公司
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