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Diesel engine lubricating oil composition, preparation method, and application thereof

A technology of lubricating oil composition and diesel engine, applied in lubricating composition, petroleum industry, organic chemistry, etc., can solve problems such as low emission, blocked oil filter, cylinder liner piston ring, friction pair wear of valve group, etc.

Active Publication Date: 2017-05-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Diesel engines use technologies such as direct injection, delayed fuel injection, high-top ring pistons, and exhaust gas recirculation (EGR) to meet the requirements of high power and low emissions. The adoption of these technologies increases the soot content in the oil, which is likely to cause oil Viscosity increases, oil filter is blocked, and at the same time, friction pairs such as cylinder liner, piston ring and valve group are worn away

Method used

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  • Diesel engine lubricating oil composition, preparation method, and application thereof
  • Diesel engine lubricating oil composition, preparation method, and application thereof
  • Diesel engine lubricating oil composition, preparation method, and application thereof

Examples

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preparation example

[0086] Fill a 500ml flask with an electromagnetic stirrer (stirring speed is 300rpm) with nitrogen protection, add 150ml of dichloromethane, then add 0.2mol of sulfur chloride, fully cool in an ice-water bath, add 0.2mol of aniline . Remove the ice-water bath after monitoring until the reaction is complete, and place it at room temperature of 25°C. After the reaction system gradually rises to 25°C, add 4-chloroaniline in 3 times for reaction. The amount added each time is the same, and 4-chloroaniline is added in total 0.15mol. After the reaction was continued for 2 hours, 30ml of saturated brine was added to quench the reaction, and then the reaction system was transferred to a separatory funnel, washed with 50ml of distilled water and 50ml of saturated brine, and dried by adding 10g of anhydrous sodium sulfate at 25°C for 20min. The filtered filtrate was evaporated to remove the solvent at 40° C. and 0.05 MPa to obtain intermediate M1.

[0087]Fill a 500ml flask with an el...

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PUM

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Abstract

The invention provides a diesel engine lubricating oil composition, a preparation method, and an application thereof. The diesel engine lubricating oil composition includes: A) a multi-functional additive, which is represented as the formula (I); B) a boron-containing anti-oxygen-type polyisobutylene succinimide ash-free dispersant; C) at least one high-molecular-weight polyisobutylene succinimide ash-free dispersant; D) a sulfonate and / or a sulfurized alkylphenol salt; E) at least one dialkyl zinc dithiophosphate; F) an amine-type antioxidant and / or a phenolic ester antioxidant; and G) the balanced being lubricating basic oil. The lubricating oil composition is not higher than 0.09% in content of phosphorus and is not higher than 1% in sulfate ash content, has excellent anti-oxidizing, anti-wear and high-temperature cleaning performances, and can satisfy the demand of high-performance diesel engine lubricating oil at CH-4 and CI-4 grades.

Description

technical field [0001] The invention relates to a diesel engine lubricating oil composition. Background technique [0002] In recent years, the increasingly stringent emission regulations have prompted engine manufacturers to adopt new technologies, and also promoted the continuous upgrading of internal combustion engine oils. The performance requirements of oil products in terms of anti-oxidation, anti-wear, cleaning and dispersion are getting higher and higher. The power of modern diesel engines increases, the heat load increases, and the use of EGR increases the temperature of the engine oil, and the requirements for the oil's anti-oxidation ability and high-temperature cleaning performance are also continuously increasing. The engine test to evaluate its high temperature oxidation resistance in the API diesel engine lubricating oil specification has been developed from 64 hours in program IIIE, to 80 hours in program IIIF, to 100 hours in current program IIIG, and the re...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M167/00C10M135/36C07D285/125C10N40/25C10N30/06C10N30/04
Inventor 徐杰陈政武志强孙洪伟张倩段庆华张峰夏青虹
Owner CHINA PETROLEUM & CHEM CORP
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