Preparation method of diesel oil additive, prepared diesel oil additive and application of diesel oil additive

An additive and diesel technology, which is applied in the preparation of diesel additives and in the field of diesel additives, can solve the problems of not increasing the added value of diesel, not producing economic benefits, and unsatisfactory performance, so as to achieve flexible addition methods, improve low-temperature fluidity of diesel, The effect of reducing the average wear scar

An additive and diesel technology, which is applied in the preparation of diesel additives and in the field of diesel additives, can solve the problems of not increasing the added value of diesel, not producing economic benefits, and unsatisfactory performance, so as to achieve flexible addition methods, improve low-temperature fluidity of diesel, The effect of reducing the average wear scar

CN105777985AActive Publication Date: 2016-07-20杭州速腾智创智能科技有限公司
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  • Preparation method of diesel oil additive, prepared diesel oil additive and application of diesel oil additive
  • Preparation method of diesel oil additive, prepared diesel oil additive and application of diesel oil additive
  • Preparation method of diesel oil additive, prepared diesel oil additive and application of diesel oil additive

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preparation example Construction

[0018] The first aspect of the present invention: provide a kind of preparation method of diesel oil additive, it is characterized in that, this method comprises: carry out polymerization reaction after mixing maleic anhydride, acrylate, methyl oleate, initiator and organic solvent, obtain maleic acid Acid anhydride-acrylic acid ester-methyl oleate terpolymer as diesel oil additive; Wherein, the molar ratio of described maleic anhydride, acrylate and methyl oleate is 1:(0.5-3):(0.5-3), Preferably 1: (1.5-2.5): (1.5-2.5), the acrylate is acrylic acid and C 12 -C 18 obtained from the esterification of alcohols.

[0019] According to the first aspect of the present invention, the polymerization reaction is a free radical reaction, and a compound that is easily decomposed into free radicals (primary free radicals) by heat can be added, that is, a free radical initiator, also referred to as an initiator, to initiate the reaction. For example, the initiator can be benzoyl peroxide...

Embodiment 1

[0033] Mix acrylic acid, n-dodecyl alcohol, p-toluenesulfonic acid and hydroquinone, and carry out esterification reaction under reflux at about 120°C for 1 hour until the amount of water obtained in the esterification reaction is close to the theoretical value, to obtain lauryl acrylate; among them, acrylic acid The molar ratio with n-dodecyl alcohol is 1:1, the addition of p-toluenesulfonic acid is 0.5% of the total mass of acrylic acid and n-dodecyl alcohol, and the addition of hydroquinone is 0.5% of the total mass of acrylic acid and n-dodecyl alcohol. 1%.

[0034] After mixing formic acid, methanol, and concentrated sulfuric acid (98% by mass) with 6% by mass of oleic acid in a molar ratio of 2:1, add water-carrying agent toluene, and carry out esterification reaction at about 140°C for 2 hours to obtain methyl oleate ester.

[0035] After mixing the prepared lauryl acrylate, methyl oleate and maleic anhydride in a molar ratio of 1:2:2, add 1% benzyl peroxide to the tot...

Embodiment 2

[0037] Mix stearyl acrylate, methyl oleate and maleic anhydride purchased from Bailingwei Technology Co., Ltd. at a molar ratio of 1:2:2, and then add maleic anhydride, stearyl acrylate and methyl oleate to form a total 1% of the mass of azobisisobutylcyanide and 50% of the mass of xylene were polymerized for 6 hours at about 120°C under the protection of nitrogen to obtain maleic anhydride-octadecyl acrylate-methyl oleate The meta-copolymer is used as diesel additive 2 with a flash point of 65°C.

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Abstract

The invention discloses a preparation method of a diesel oil additive, the prepared diesel oil additive and an application of the diesel oil additive; the diesel oil additive is prepared by mixing maleic anhydride, acrylic acid ester, methyl oleate, an initiator and an organic solvent, then carrying out a polymerization reaction to obtain a maleic anhydride-acrylic acid ester-methyl oleate ternary copolymer as the diesel oil additive, wherein the molar ratio of the maleic anhydride to the acrylic acid ester to the methyl oleate is 1 to (0.5-3) to (0.5-3), the acrylic acid ester is obtained by esterification of acrylic acid and C12-C18 alcohol. The diesel oil additive is added to vehicle diesel oil, not only can play a role in reducing the diesel oil cold filter plugging point and improving the low-temperature flowing properties of the diesel oil, but also can improve the antiwear lubricating properties of low-sulfur diesel oil.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a method for preparing a diesel additive, the prepared diesel additive and its application. Background technique [0002] With the increasing environmental protection requirements, the exhaust emission standards of diesel vehicles are gradually increasing, and the control of sulfur content in diesel is becoming increasingly stringent. At present, some countries have implemented Euro III standards (sulfur content ≤ 300μg / g). It is imperative to use low-sulfur diesel. In order to meet the requirements of environmental protection, the World Fuel Council promulgated the latest clean fuel specifications for vehicles, the requirements for sulfur content are more stringent. In categories III and IV, the sulfur content of restricted diesel must be less than 30×10 -6 The ppm sum is "zero" (<5×10 -6 ~10×10 -6 ppm). In order to produce high-standard low-sulfur vehicle diesel oil...

Claims

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Application Information

Patent Timeline
20 Jul 2016
Publication
CN105777985A
IPC
C08F222/06; C08F220/18; C08F220/14; C10L1/196; C10L10/00
CPC
C10L1/196; C10L10/00; C08F220/14; C08F222/06; C08F220/1812; C08F220/1818
Inventors
施红; 冯秋庆