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A kind of diesel oil composition and the method for improving biodiesel oxidation stability

A technology of diesel oil composition and biodiesel, which is applied in the direction of biofuel, petroleum industry, liquid carbon-containing fuel, etc. It can solve the problems of poor oxidation stability, poor stability and clean dispersion, and achieve reduced dosage, stability and clean dispersion Good resistance, anti-oxidation and improved cleansing and dispersibility

Active Publication Date: 2016-01-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present invention is to overcome the poor oxidation stability of the diesel oil composition based on pure biodiesel and the stability and stability of the diesel composition based on the blended fuel of biodiesel and other diesel oil in order to overcome the above-mentioned prior art. The disadvantage of poor detergency and dispersibility is to provide a diesel composition with good oxidation stability and detergency or good stability and detergency and dispersibility

Method used

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  • A kind of diesel oil composition and the method for improving biodiesel oxidation stability
  • A kind of diesel oil composition and the method for improving biodiesel oxidation stability
  • A kind of diesel oil composition and the method for improving biodiesel oxidation stability

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preparation example Construction

[0175] The preparation of the diesel composition provided by the invention is simple, and only needs to mix the components of the diesel composition uniformly. The various additive components can be directly mixed with the base diesel oil, or the various additive components can be mixed evenly first to obtain the additives, and then the obtained additives can be mixed with the base diesel oil. For the convenience of operation, when the various additive components are mixed uniformly, it can be carried out in the presence of a solvent, and the solvent here can be a polar solvent such as N, N-dimethylformamide (DMF), 1,4-dioxane One or more of ring, tetrahydrofuran (THF), dimethyl sulfoxide (DMSO), pyrrolidone and methylpyrrolidone. It can also be hydrocarbons, especially aromatics such as benzene, toluene, xylene, aromatics diluent oil and their mixtures, and biodiesel.

[0176] In the present invention, described base diesel oil can be pure biodiesel, and described biodiesel ...

Embodiment 1

[0194] In a 1000ml three-necked bottle, add 363.3 grams of polyisobutene (the number-average molecular weight of polyisobutene Mn=1100, the source is Jinzhou Petrochemical Company) and 62.1 grams of phenol, stir and heat to 50 ° C, and 14.1 grams of BF 3 - Diethyl ether solution was added dropwise to the reaction system three times within two hours. The temperature was raised to 60°C, and the reaction was timed for 4.5 hours. Stop the reaction, wash with 40°C distilled water three times, and then distill under reduced pressure to remove unreacted phenol. The unreacted polyisobutene was analyzed by column chromatography to be 32%, and the alkylation conversion rate of polyisobutene was calculated to be 68%.

Embodiment 2

[0196] In a 500ml three-necked bottle, add 100 grams of polyisobutene (polyisobutene number-average molecular weight Mn=1000, the source is BASF, Germany) and 18.8 grams of phenol, stir and heat to 60 ° C, and 4.3 grams of BF 3 - Diethyl ether solution was added dropwise to the reaction system three times in about two hours. The temperature was raised to 70°C, and the reaction was timed for 4 hours. Stop the reaction, wash with 50°C distilled water three times, and then distill off unreacted phenol under reduced pressure. The unreacted polyisobutene was analyzed by column chromatography to be 30%, and the alkylation conversion rate of polyisobutene was calculated to be 70%.

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Abstract

The invention provides a diesel composite, including basic diesel and an additive, wherein the basic diesel includes biodiesel; the additive includes a component a and a component b; the component a includes Mannich base ashless dispersants; and the component b is aromatic amine type antioxidant and / or hindered phenol antioxidant. The additive also optionally includes a component c, and the component c is metal passivator. The invention further provides a method for improving oxidation stability of the biodiesel. With the pure biodiesel as the basic diesel, the diesel composite provided by the invention has better oxidation stability; and when the blended fuel including the biodiesel is used as the basic diesel, the diesel composite has better stability and better clean dispersibility.

Description

technical field [0001] The invention relates to a diesel composition and a method for improving the oxidation stability of biodiesel. Background technique [0002] With the acceleration of dieselization of vehicles worldwide, the demand for diesel will increase. The depletion of petroleum resources and the improvement of people's awareness of environmental protection have greatly promoted the development of diesel alternative fuels in countries around the world. Biodiesel It has been valued by various countries for its superior environmental protection performance and renewability. [0003] Biodiesel (BD100), also known as fatty acid methyl ester (FattyAcidMethylEster), is based on oil crops such as soybeans and rapeseeds, oil-bearing forest fruits such as oil palm and pistachio, engineering microalgae and other oil-bearing aquatic plants, animal fats, and waste cooking oil. etc. as raw materials, obtained through transesterification with alcohols (methanol, ethanol), and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/02C10L1/223C10L1/183C10L1/24C10L1/236C10L1/04
CPCY02E50/10
Inventor 蔺建民张永光张建荣李率
Owner CHINA PETROLEUM & CHEM CORP