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

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Problems solved by technology

However, the above products are not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1

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

[0036] In a three-necked flask, add 200 grams (0.14 mol) of polyisobutylene succinic anhydride (the number average molecular weight of polyisobutylene is Mn = 1200, the saponification value is 80 mg KOH / g, and the degree of substitution is 1.0) and the distillation range of 200 grams is 159. ~185℃C 9 Heavy aromatics (bottom material for platinum reforming kettle), heated to 80°C and stirred uniformly, slowly added 20.2g (0.138mol) of triethylenetetramine, heated to 150°C under nitrogen protection for dehydration reaction for 6 hours to obtain intermediate product 1. Its nitrogen content is 1.9% by weight. Add 25 grams of C 9 Heavy aromatics are mixed into about 50% diluent.

Example Embodiment

[0037] Example 2

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

[0039] In a three-necked flask, add 18.2g (0.096mol) of tetraethylenepentamine, 20g of toluene and 200g of C with a distillation range of 159~185℃ 9 Heavy aromatics (platinum reforming bottom material), heating and stirring to 50 ℃, in the presence of nitrogen, slowly add 200 grams (0.107 mol) of polyisobutylene succinic anhydride (polyisobutylene number average relative molecular weight Mn = 900, saponification value 60 (Mg KOH / g, degree of substitution 0.65), heated to 110°C for 3 hours, heated to distill toluene, and reacted at 145°C for another 2 hours to obtain intermediate product 2 with a nitrogen content of 2.0% by weight. Then add 20 grams of C 9 Heavy aromatics are mixed into about 50% diluent.

Example Embodiment

[0041] Example 3

[0042] In a three-necked flask, add 50 grams of the intermediate product prepared in 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 aromatics, nitrogen gas, reaction at 100 ℃ for 5 hours, 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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