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Method for developing lube base oil with hydrogenated soybean oil under supercritical CO2 state

A technology of lubricating oil base oil and soybean oil, which is applied in lubricating compositions, hydrogenation of fatty acids, etc., and can solve problems such as lubricating oil pollution

Inactive Publication Date: 2010-08-11
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention solves the problem of food contamination caused by lubricating oil in the food processing industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0018] Specific implementation mode one: the steps of this implementation mode are as follows:

[0019] Step 1: Pre-reaction treatment: add 50 g of soybean oil sample into a stainless steel autoclave, add 0.06% Pd / C catalyst at the same time, and then add stirring magnetic beads;

[0020] Step 2: Replacement gas: Fill the stainless steel autoclave with 3-4MPa of H 2 ; with H 2 Replace the air in the stainless steel autoclave 3 to 4 times, and the pressure is less than 4MPa;

[0021] Step 3: Leak test: test the leak of the stainless steel autoclave filled with gas;

[0022] Step 4: Evacuate the hydrogen in the stainless steel autoclave and fill it with CO 2 , its pressure is 4MPa, and then filled with H 2 , its pressure is 3MPa, and the total pressure is 7MPa.

[0023] Step 5: Preheating: Put the stainless steel autoclave into a 70°C constant temperature water bath to preheat for 20 minutes;

[0024] Step 6: Heating reaction: Put the stainless steel autoclave into a 70°C ...

specific Embodiment approach 2

[0028] Embodiment 2: The difference between this embodiment and Embodiment 1 is that 0.05% Pd / C catalyst is added in Step 1. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Specific embodiment three: the difference between this embodiment and specific embodiment one is that in step three, H 2 , its pressure is 4MPa, and the total pressure is 8MPa. Other steps are the same as in the first embodiment.

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PUM

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Abstract

A method for developing lube base oil with hydrogenated soybean oil under supercritical CO2 state solves the problem of food pollution in food processing industry due to lube leakage and spattering on machine. The method comprises the following steps: placing soybean oil in a high pressure kettle, placing the kettle in a water bath for reaction after supercritical hydrogenation, taking out the product after the reaction, and obtaining the lube base oil after centrifugation. Compared with the traditional hydrogenation method, the reaction time of supercritical hydrogenation is shortened by about 20min; the content of trans fatty acid is controlled and is decreased to less than 4% and is decreased by 9% compared with conventional method; and the content of saturated fatty acid in the soybean oil is increased so as to increase the resistance to oxidation. The method uses soybean oil as lube base oil to improve the edible components in the oil and reduce the toxic and side effect compared with common industrial lube. The detected peroxide value is 5.6 mmol / kg, the detected viscosity is 26 Pa.s, and the detected iodine value is 106.3gI2 / 100g.

Description

Technical field: [0001] The present invention relates to a kind of in supercritical CO 2 A method for preparing lubricating oil base oil by hydrogenating soybean oil under state. Background technique: [0002] In recent years, the issue of food safety has attracted the attention of people all over the world. Food safety emergencies have become a hidden danger to the society, and have brought huge economic losses to the country, and even destroyed international trade. Therefore, the importance of food safety cannot be ignored. With the advancement of human science and technology, the development of green and environmentally friendly renewable resources has been highly valued by people. Especially in the process of food processing, food safety has been seriously threatened due to splashing and leakage of lubricating oil on machinery. [0003] At present, great progress has been made in the research on the development of green lubricating oil base oils from vegetable oils. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/12C10M177/00
Inventor 于殿宇邵弘王立琦朱秀清齐颖李振岚王玉李默馨刘晶
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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