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Method of increasing the oxidation stability of biodiesel

An oxidation stability, biodiesel technology, applied in chemical instruments and methods, organic chemistry, petroleum industry, etc., can solve the problems of corrosion and blockage of the fuel line of the injection pump, and achieve the effect of improving oxidation stability and improving oxidation stability.

Inactive Publication Date: 2006-10-18
DEGUSSA AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Products formed (including acids, resins) can cause corrosion and plugging of syringe pumps and / or fuel lines

Method used

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  • Method of increasing the oxidation stability of biodiesel
  • Method of increasing the oxidation stability of biodiesel
  • Method of increasing the oxidation stability of biodiesel

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Abstract

The present invention relates to a method for increasing the oxidation stability of biodiesel, characterized in that at least one main antioxidant having the following structure I is added to the stabilized biodiesel in an amount of 10 to 20000 ppm (w / w) , the application of these main antioxidants for increasing the oxidation stability of biodiesel, and the corresponding biodiesel whose oxidative property has been stabilized, wherein A=, -S-, n=1 to 5, or, E=formazy radical, tert-butyl, R1, R4, R5 = hydrogen, alkyl, and R2 = hydrogen, methyl.

Description

technical field The present invention relates to a method of increasing the oxidation stability of biodiesel. Background technique An alternative to conventional diesel fuel that is increasingly in use today is Biodiesel, which comprises mono-alkyl esters of vegetable oils, animal fats and also culinary fatty substances. Biodiesel is obtained by transesterification of oils, such as rapeseed oil, soybean oil or sunflower oil, and also cooking oils, with alcohols in the presence of a catalyst. Because the importance of biodiesel as a substitute for diesel fuel in the passenger car sector has continued to increase in recent years, the scale of biodiesel production has also increased accordingly in recent years. Biodiesel contains a high content of unsaturated fatty acid esters which are easily oxidized by atmospheric oxygen. The products formed (including acids, resins) can cause corrosion and plugging of syringe pumps and / or fuel lines. The increasing use of biodiesel as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/183C07C39/04C07C39/15C07C39/17C10L1/24C10L10/12
CPCC09K15/08C10L1/1835C10L1/2412C10L1/14C10L1/183
Inventor H·-O·阿斯巴尔T·博姆巴
Owner DEGUSSA AG
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