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A kind of preparation method of low freezing point adipate type diesel oil antiwear agent

A technology with low freezing point and adipic acid, applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve problems such as poor lubricity and decreased lubricity of diesel oil, and achieve low freezing point, small acid value and simple production process Effect

Active Publication Date: 2022-01-25
CHANGZHOU INST OF LIGHT IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet the low-sulfur requirements, hydrocracking and other processes are used to remove sulfur-containing substances and also remove polar oxygen-containing, nitrogen-containing and aromatic compounds. The removal of these natural polar substances results in the lubricity of diesel oil itself. The decline of diesel oil has caused the problem of poor lubricity and environmental protection standards

Method used

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  • A kind of preparation method of low freezing point adipate type diesel oil antiwear agent
  • A kind of preparation method of low freezing point adipate type diesel oil antiwear agent
  • A kind of preparation method of low freezing point adipate type diesel oil antiwear agent

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Example 1, such as figure 1 As shown: This embodiment relates to a method for preparing a low-rise adipate diesel anti-wear agent, and the raw material is based on mass parts, and the components are as follows:

[0021]

[0022]

[0023] Adipate, 2-methyl-1,3-propylene glycol, glycerol, and mixed fatty acids are put into polyester reactor in which the hyacinated acid content is 90 wt; replacement nitrogen and antitrice protection to ensure the reactor The previous pressure has been at 0.004 MPa; the control of the top temperature is within 102 ° C, and the heating continues to heat up to 230 ° C, heat the temperature of 3 h; start evacuation, vacuum degree 0.03MPa, maintain temperature at 230 ° C; to be acid value to 1.2 mgkoh / g stopped the reaction and cooling, stopping the anthropyl nitrogen, filtered, and the transparent low solidified point adipate diesel abrasion agent.

Embodiment 2

[0024] Example 2: A method for preparing a low-rose point adipate diesel anti-wear agent, and the raw material is based on mass parts, and the components are as follows:

[0025]

[0026] Adipate acid, 2-methyl-1,3-propanediol, trimethylolpropane, and mixed fatty acids are put into polyester reactor, replace nitrogen and protected nitrogen protection to ensure that the reaction kettle is in the vacuum. 0.003MPa; Controlling the top temperature within 102 ° C, continuous temperature rise to 231 ° C, heat insulation 3 h; start evacuation, vacuum degree 0.025 MPa, maintain temperature at 231 ° C; to be acid value to 1.2 mg KOH / g The reaction and cooling, the azurized nitrogen, filtered, that is, the transparent low solidified point adipate diesel anti-wear agent.

Embodiment 3

[0027] Example 3: A method for preparing a low-rise adipate diesel anti-wear agent, the raw material is based on mass parts, and the components are as follows:

[0028]

[0029] Adipate, 2-methyl-1,3-propanediol, ethylene glycol, glycerol, trimethylolpropane, and mixed fatty acid (70 wt%), together with a polyester reaction kettle, replace nitrogen and anthidide protection To ensure that the reactor is at 0.0035MPa before the vacuum; the control of the top temperature is within 102 ° C, and the temperature is continuously warmed to 229 ° C, heat the temperature for 3 h; start evacuation, vacuum 0.024 MPa, maintain temperature at 232 ° C; The acid value was reduced to 1.2 mg KOH / g to stop the reaction and cooled, stop the drum nitrogen, pressurized, and the transparent low solidified point adipate diesel abrasive agent.

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PUM

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Abstract

The invention relates to a method for preparing a low-freezing-point adipate-based diesel antiwear agent. Adipic acid, dihydric alcohol, trihydric alcohol and mixed fatty acids are put into a polyester reaction kettle, nitrogen is replaced and nitrogen is blown for protection. To ensure that the reaction kettle is always in a positive pressure state before vacuuming; control the temperature at the top of the tower within 102°C, continue to heat up to 230±2°C, and keep it warm for 3 hours; start vacuuming, the vacuum degree is 0.02-0.04MPa, and maintain the temperature at 230°C ±2°C; stop the reaction when the acid value of the product drops below 1.2mg KOH / g, lower the temperature, stop blowing nitrogen, and press filter. Compared with acid diesel antiwear agents, the product prepared by using adipic acid as a raw material in the present invention can not only increase the antiwear performance of diesel oil, but also conform to the concept of environmental protection and is non-corrosive to engines and pipelines.

Description

Technical field [0001] The present invention relates to the preparation of diesel additives, and more particularly to a method for preparing a low-rolled dot edenic acid ester diesel abrasive agent. Background technique [0002] As we all know, the motor vehicle exhaust gas is one of the sources of PM2.5 particles, and the sulfur content in oil products before my country is high, and the degree of pollution of the exhaust emissions of motor vehicles is increased. Traditionary diesel refers to a mixture consisting of C10 to C20 hydrocarbons, a small amount of non-hydrocarbons, and micro additives. Among them, hydrocarbons are alkanes, cycloalkanes, and aromatic hydrocarbons, and non-hydrocarbon compounds are mainly sulfur, nitrogen, and oxygen-based compounds. These heterocyclic hydrocarbon compounds are adsorbed to the metal surface of the lack of electrons in the heterocyclic hydrocarbon compound, and form a stable dense monolane film, which functions to border lubrication and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/19C10L10/08
CPCC10L1/1905C10L10/08
Inventor 蒋文俊陈元皓池霄
Owner CHANGZHOU INST OF LIGHT IND TECH