A kind of coal-water slurry mixed fuel engine oil composition

Abstract

The invention discloses a coal water slurry blended fuel engine oil composition. Polyinternalolefins and castor-bsae dioctyl sebacate used as base oil are matched with multiple composite additives to obtain the composition. The composite additives comprise an antiwear additive, an antioxidant preservative, an antifoam agent, a demulsifying compound, a viscosity index improver, a metal passivator, a detergent agent, a dispersing agent, an antioxidant, an oily agent, a friction improver, a reinforcing agent and a rust inhibitor. The engine oil composition has excellent cleaning and dispersion effects, prevents the piston ring from sticking, and keeps the engine clean. Due to excellent viscosity-temperature characteristic, excellent alkali number retentivity, acid neutralizing capacity and demulsifying capacity, the engine oil composition can inhibit the black oil sludge from generation, so that the engine is cleaner. Due to favorable high-temperature oxidation stability, high shear stability, favorable rubber compatibility, favorable cold-starting property and excellent fuel economical efficiency, the engine oil composition can not corrode or tarnish the moving parts, ensures the oil product to maintain sufficient oil film strength, has better extreme-pressure abrasion resistance, and lowers the abrasion and engine oil consumption.

Description

technical field [0001] The invention belongs to the field of internal combustion engine lubricants, in particular to a coal-water slurry mixed fuel engine oil composition. Background technique [0002] With the increasing number of diesel engines, energy and environmental issues have become the main factors restricting the sustainable development of diesel engines. Due to the advancement of diesel engine technology, environmental protection and convenience have gradually reached the predetermined standard. However, the problem of energy is prominent. On the one hand, from improving the existing engine, improving thermal efficiency, and improving the fuel utilization rate of petroleum products; energy channel. Coal water slurry (CWM) is a low-pollution liquid fuel. Its typical formula is: about 70% coal, about 30% water, and less than 1% chemical additives. Its characteristics are: convenient and simple manufacture, convenient storage and transportation, simple use, less e...

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Problems solved by technology

It is suitable for the problems that diesel engines should solve. For example, because the coal-water slurry contains more water, its ignition and combustion are relatively late, and it is difficult to meet the requirements of fast start-up and high-speed operation of the machine; a special coal-water slurry burner is required for Spray it into mist for stable combustion

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