Diesel oil anti-wear agent with excellent comprehensive performance and preparation method thereof

A technology of comprehensive performance and anti-wear agent, applied in the field of diesel anti-wear agent and its preparation, can solve the problems of reducing the acid value of diesel anti-wear agent, reducing the anti-wear effect of the anti-wear agent, and reducing the freezing point of the anti-wear agent. Value reduction, reduction of separation steps, effect of mitigating reaction conditions

Inactive Publication Date: 2021-10-22
BEIJING ZHONGYUANCHENG ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] By adopting the above technical scheme, this application reasonably selects and designs the components and proportions of the diesel antiwear agent, and the raw materials work together to make the diesel antiwear agent The acid value of the product is significantly reduced, thereby reducing the disadvantage of the fatty acid type diesel antiwear agent increasing the acidity of diesel oil and reducing corrosion; compared with the simple fatty acid type antiwear agent or the simple fatty acid ester type antiwear agent, the application of The abrasive agent has better anti-wear effect and overcomes the disadvantage of poor water resistance of the fatty acid ester anti-wear agent to balance the water resistance and anti-wear performance; through an appropriate amount of pour point depressant, the freezing point of the anti-wear agent can be reduced, Improve the low-temperature fluidity of the anti-wear agent, which is convenient to use and operate at low temperature in winter. At the same time, this type of pour point depressant is polyester, which has a certain anti-wear performance. Appropriate use will not reduce the overall anti-wear effect of the anti-wear agent

Method used

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  • Diesel oil anti-wear agent with excellent comprehensive performance and preparation method thereof
  • Diesel oil anti-wear agent with excellent comprehensive performance and preparation method thereof
  • Diesel oil anti-wear agent with excellent comprehensive performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] S1, weigh 0.35kg of glycerin and add it to the esterification reaction kettle, then weigh 0.03kg of strong acid resin and add it to the glycerin, and add 0.27kg of xylene water-carrying agent and 0.55kg of oleic acid, in a nitrogen environment Start stirring, and heat the above mixture to 140°C for esterification reaction for 6h;

[0037] S2, after the esterification reaction is completed, the temperature is lowered to 60°C, and the xylene-carrying agent is extracted and removed under reduced pressure;

[0038] S3, the product in S2 is filtered to remove the strong acidic resin;

[0039] S4, cooling the product in S3 to 25° C., and removing residual moisture and impurities therein by molecular sieve refining;

[0040] S5, add 0.002 kg of anti-emulsifier, 0.03 kg of pour point depressant and 0.005 kg of antistatic agent to the product obtained in S4, and stir and mix thoroughly for 15 minutes to obtain a diesel antiwear agent.

Embodiment 2

[0042] S1, weigh 0.35kg of glycerin and add it to the esterification reaction kettle, then weigh 0.04kg of strong acid resin and add it to the glycerin, and add 0.3kg of xylene water-carrying agent and 0.75kg of oleic acid, in a nitrogen environment Start stirring, and heat the above mixture to 140°C for 5.5 hours of esterification reaction;

[0043] S2, after the esterification reaction is completed, the temperature is lowered to 60°C, and the xylene-carrying agent is extracted and removed under reduced pressure;

[0044] S3, the product in S2 is filtered to remove the strong acidic resin;

[0045] S4, cooling the product in S3 to 25° C., and removing residual moisture and impurities therein by molecular sieve refining;

[0046] S5, add 0.006 kg of anti-emulsifier, 0.03 kg of pour point depressant and 0.008 kg of antistatic agent to the product obtained in S4, and stir and mix thoroughly for 15 minutes to obtain a diesel antiwear agent.

Embodiment 3

[0048]S1, weigh 0.35kg of glycerin and add it to the esterification reaction kettle, then weigh 0.04kg of strong acid resin and add it to the glycerin, and add 0.4kg of xylene water-carrying agent and 0.95kg of oleic acid, in a nitrogen environment Start stirring, and heat the above mixture to 140°C, and carry out esterification reaction for 5h;

[0049] S2, after the esterification reaction is completed, the temperature is lowered to 60°C, and the xylene-carrying agent is extracted and removed under reduced pressure;

[0050] S3, the product in S2 is filtered to remove the strong acidic resin;

[0051] S4, cooling the product in S3 to 25° C., and removing residual moisture and impurities therein by molecular sieve refining;

[0052] S5, add 0.01kg of anti-emulsifier, 0.04kg of pour point depressant and 0.012kg of antistatic agent to the product obtained in S4, and stir and mix thoroughly for 15 minutes to obtain a diesel antiwear agent.

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Abstract

The invention relates to the technical field of petroleum product additives, and particularly discloses a diesel oil anti-wear agent with excellent comprehensive performance and a preparation method thereof. The diesel oil anti-wear agent comprises the following components in parts by weight: a component A: 35-80 parts by weight of monoglyceride oleate and 20-60 parts by weight of oleic acid; and a component B: 0.2-1 part by weight of a demulsifying agent, 1-5 parts by weight of a pour point depressant and 0.5-1.2 parts by weight of an antistatic agent. The preparation method comprises the following steps: in a nitrogen environment, carrying out esterification reaction on oleic acid and glycerol in the presence of a water-carrying agent and strong acid resin; after the reaction is completed, removing the water-carrying agent through reduced-pressure extraction; then filtering to remove the strong acid resin; cooling to room temperature, and removing residual impurities by using a molecular sieve refining method; and then adding the demulsifying agent, the pour point depressant and the antistatic agent according to the corresponding weight parts, and stirring and mixing to obtain the diesel oil anti-wear agent. The diesel oil anti-wear agent disclosed by the invention has relatively good lubricating property, demulsibility and low acid value.

Description

technical field [0001] The application relates to the technical field of petroleum product additives, more specifically, it relates to a diesel antiwear agent with excellent comprehensive performance and a preparation method thereof. Background technique [0002] With the continuous improvement of automobile exhaust emission indicators in various countries and the continuous improvement of people's requirements for air quality, governments and automobile industries have put forward higher requirements for the quality of diesel; for this reason, major refineries at home and abroad continue to use new processes to Reduce the sulfur content in diesel; in the process of desulfurization, since the natural lubricating components such as polar oxygen-containing and nitrogen-containing compounds and polycyclic aromatic hydrocarbons with good anti-wear properties will also be removed at the same time, the low-sulfurization of diesel It also caused a series of problems such as poor lu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/26C10L1/238C10L1/195C10L1/19C10L1/188C10L1/185
CPCC10L1/143C10L1/1881C10L1/191C10L1/1852C10L1/195C10L1/2666C10L1/2683C10L1/238
Inventor 容永源訾立钧徐光楠尤瑞虎
Owner BEIJING ZHONGYUANCHENG ENERGY TECH CO LTD
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