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Low-sulfure diesel oil antifriction dispersion multi-effect additive composition

A technology of low-sulfur diesel oil and composition, which is applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problems of unsatisfactory diesel lubricity effect, achieve good anti-wear properties, reduce the production of oxidized deposits, and improve the The effect of adsorption and capture capabilities

Active Publication Date: 2004-12-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above products are not ideal for improving the lubricity of diesel oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] This example is the preparation of alkenyl succinimide.

[0036] In the three-necked flask, add 200 grams (0.14mol) polyisobutylene succinic anhydride (polyisobutylene number-average relative molecular mass Mn=1200, saponification value 80 mg KOH / gram, degree of substitution is 1.0) and 200 grams distillation range is 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 obtained intermediate product 1, Its nitrogen content is 1.9% by weight. Add 25 grams of C 9 Heavy aromatics are made into about 50% dilution.

example 2

[0038] This example is the preparation of alkenyl succinimide.

[0039] 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 to 185°C 9 Heavy aromatics (platinum reforming tank bottom material), heated and stirred to 50 ° C, in the presence of nitrogen, slowly added 200 grams (0.107 mol) polyisobutylene succinic anhydride (polyisobutylene number average relative molecular mass Mn = 900, saponification value 60 mg KOH / gram, the degree of substitution is 0.65), the temperature was raised to 110° C. for 3 hours, the toluene was evaporated by heating, and the reaction was carried out at 145° C. for another 2 hours to obtain an intermediate product 2 with a nitrogen content of 2.0% by weight. Then add 20 grams of C 9 Heavy aromatics are made into about 50% dilution.

example 3

[0042] In the three-necked flask, add 50 grams of the intermediate product prepared by Example 1 and 3.9 grams of p-hydroxybenzoic acid (the molar ratio of p-hydroxybenzoic acid to triethylenetetramine is about 1.8:1), and 4 grams of C 9 Heavy aromatic hydrocarbons were reacted at 100°C for 5 hours under nitrogen gas, and then cooled to room temperature.

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PUM

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Abstract

A wear-resistant dispersing multi-effect additive composition of low-sulfur diesel fuel includes components A and B, wherein, component A consisting of reacted product or mixture obtained by reacting phenol acids with alkenyl succimide under 60-200degC for 0.5-20 hours at 0.5-5:1 mole ratio under existence of organic solvent; and component B consisting of reacted product or mixture of natural oil and fat and amine and / or alcohol with weight ratio of A : B = 1:0.1-10. The invention achieves additive amount 20-2000ppm of multi-effect additive composition in diesel, good lubricity and resistance to oxidation as diesel stabilizing agent, wearproofing agent and dispersing agent.

Description

technical field [0001] The invention belongs to the multi-effect additive for diesel oil, specifically, it can be used not only as an antiwear agent for diesel oil, but also as a multi-effect additive for diesel oil stabilizer and ashless dispersant for diesel oil. technical background [0002] As countries around the world pay more and more attention to environmental protection issues, in order to reduce diesel exhaust pollution and produce high-quality clean diesel oil, it has become the development direction of the modern oil refining industry. This kind of diesel oil generally has the characteristics of low sulfur content, low aromatics content, high cetane number, and light distillate. Studies have shown that sulfur is the most harmful element that increases CH and CO in diesel engine emissions, especially inhalable particulate matter (PM), so reducing the sulfur content in diesel is particularly important for improving air pollution. Now the United States, Canada, and...

Claims

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Application Information

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IPC IPC(8): C10L1/22
Inventor 蔺建民朱同荣黄燕民
Owner CHINA PETROLEUM & CHEM CORP
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