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Low-sulfur diesel oil multi-effect additive composition

A low-sulfur diesel oil and composition technology, applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problems of diesel stabilizers without clean dispersion, oil solubility is not very good, diesel oxidation sediment inhibition ability is not strong, etc. Achieve anti-oxidation ability, clean dispersion performance, strong adsorption and capture ability, good anti-wear effect

Inactive 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

This type of additive has a certain stabilizing effect on the color, but under the accelerated oxidation conditions (SH / T0175-94, 95 ° C, 16 hours of oxygen), the ability to inhibit diesel oxidation sediment is not strong, and its oil solubility is not very good. it is good
Moreover, the above-mentioned diesel stabilizer has no cleaning and dispersing effect

Method used

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  • Low-sulfur diesel oil multi-effect additive composition
  • Low-sulfur diesel oil multi-effect additive composition

Examples

Experimental program
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Effect test

example 1

[0037] This example is the preparation of polyalkenylphenol:

[0038] In a 1000ml three-necked bottle, add 363.3 grams of polyisobutene (polyisobutene number-average molecular weight 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 hot distilled water three times, and then distill under reduced pressure to remove unreacted phenol. The conversion rate is calculated by column chromatography analysis method, and the unreacted polyisobutene in the petroleum ether is 32%, so the conversion rate of the alkylation is 68%.

example 2

[0040] This example is the preparation of polyalkenylphenol:

[0041] In a 1000ml three-necked bottle, add 200 grams of polyisobutene (polyisobutene number-average molecular weight Mn=1000, the source is BASF, Germany) and 37.6 grams of phenol, stir and heat to 60 ° C, and 8.6 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 hot distilled water three times, and then distill under reduced pressure to remove unreacted phenol. The conversion rate is calculated by column chromatography analysis method, and the unreacted polyisobutene in the petroleum ether is 30%, so the conversion rate of the alkylation is 70%.

example 3

[0043] This example is the synthesis of Mannich base:

[0044] In the three-necked flask, add 100 grams of polyalkenyl phenol prepared by Example 1, 9.4 grams of triethylenetetramine and 120 grams of toluene, heat and stir to 70 ° C, and drop 13.4 grams of 36% formaldehyde solution within 2 hours into the reaction system (the molar ratio of polyalkenylphenol, formaldehyde and triethylenetetramine is 1:3:1.2). After dropping, the temperature was raised to 100°C, and the reaction was timed at 100°C for 2 hours. Then remove toluene solvent and water with vacuum distillation, add 50 grams of aromatics diluent oil again, be made into about 50% dilution.

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Abstract

A multi-effect additive composition for low-sulfur diesel includes: components A and B at weight ratio of (A):(B) = 1:0.1-10, wherein, component A consisting of reacted product or mixture of Mannich base, which is prepared from polyolefin phenol, C1-C6 aldehyde and polyenoic polyamines, and phenol acid; and component B consisting of reacted product or mixture of natural oil fat and amine and / or alcohol. The additive achieves additive amount 50-2000ppm as diesel wear resisting agent, stabilizing 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李航
Owner CHINA PETROLEUM & CHEM CORP
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