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Diesel composition

A kind of diesel oil composition and diesel oil technology, applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve the problems of poor oxidation stability and detergency, poor stability and detergency dispersibility, etc., and achieve good stability and detergency dispersibility , anti-oxidation and detergency dispersibility improvement effect

Active Publication Date: 2010-07-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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preparation example Construction

[0167] 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 (DHF), 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.

[0168] In the diesel composition of the present invention, the base diesel is biodiesel. Described biodie...

Embodiment 1

[0180] 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 in about 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

[0182] 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 composition which contains base diesel and an additive, wherein the base diesel contains biodiesel and the additive contains a component a and a component b. The component a is prepared by the following method: mixing Mannich base generated by reaction of polyolefin-based phenol, aldehyde with carbon number being 1-6 and polyethylene polyamine with organic acid containing phenolic groups according to the molar ratio of the polyethylene polyamine in the Mannich base to the organic acid containing phenolic groups to react at 50-200 DEG C for 0.5-20h in the presence of solvents, wherein the molar ratio is 1:0.5-5. The component b is an arylamine antioxidant and / or a hindered phenol antioxidant. When taking the pure biodiesel as the base diesel, the diesel composition of the invention has better oxidation stability and detergency, and when taking the blended fuel containing biodiesel as the base diesel, the diesel composition has better stability, detergency and dispersancy.

Description

technical field [0001] The present invention relates to a diesel composition. 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 (Fatty Acid Methyl Ester), is based on oil crops such as soybeans and rapeseeds, oily forest fruits such as oil palms and pistachios, engineering microalgae and other oily aquatic plants, and animal fats, Waste cooking oil and other raw materials are obtained through transesterification with alcohols (methanol, ethanol). It is a clean biofuel. Biodiesel has the three major advantages o...

Claims

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Application Information

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IPC IPC(8): C10L1/24
Inventor 蔺建民张永光李率
Owner CHINA PETROLEUM & CHEM CORP
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