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Diesel composition

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

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

[0155] 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.

[0156] In the present invention, described base diesel oil can be pure biodiesel, and described biodiesel ...

Embodiment 1

[0168] In the three-necked flask, add 200 grams (about 0.14mol) of polyisobutylene succinic anhydride (polyisobutylene number average molecular weight is 1200, saponification value is 80 mg KOH / gram, degree of substitution is 1.0) and 200 grams of polyisobutylene succinic anhydride with a distillation range of 159- 185°C 9 Heavy aromatics (platinum reforming bottom material), heated to 80°C and stirred evenly, slowly added 20.2 grams (0.138mol) of triethylenetetramine, heated to 150°C for dehydration reaction for 6 hours under the protection of nitrogen, and separated about 2.4 grams of water. The resulting alkenyl succinimide has a nitrogen content of 1.9% by weight as determined by the SH / T 0224 method. Add 25 grams of the above C 9 Heavy aromatics are made into approximately 50% by weight dilutions.

Embodiment 2

[0170] In the three-necked flask, add 18.2 grams (0.096mol) of tetraethylenepentamine, 20 grams of toluene and 200 grams of C with a distillation range of 159-185°C 9 Heavy aromatics (platinum reforming tank bottoms), heated and stirred to 50 ° C, in the presence of nitrogen, slowly added 200 grams (0.107 mol) of polyisobutylene succinic anhydride (polyisobutene base number average molecular weight Mn=900, saponification value 60 mg KOH / g, the degree of substitution is 0.65), heated up to 110°C for 3 hours, heated to evaporate toluene, and reacted for another 2 hours at 145°C to obtain the intermediate product 2, to obtain alkenyl succinimide, and use SH / T 0224 The nitrogen content was determined to be 2.0% by weight. Then add 20 grams of C 9 Heavy aromatics are made into approximately 50% by weight dilutions.

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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 alkenyl succinimide with organic acid containing phenolic groups according to the molar ratio of the polyethylene polyamine in the alkenyl succinimide to the organic acid containing phenolic groups to react at 60-200 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 蔺建民李航
Owner CHINA PETROLEUM & CHEM CORP
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