Coal slurry oil fuel engine oil composition

Abstract

The invention discloses a coal slurry oil fuel engine oil composition. According to the invention, the composition adopts polyinternalolefins and oil-soluble polyether as base oil combined with multiple complex additives including a wear-resistant agent, an antioxidant preservative, an anti-foaming agent, a viscosity index improver, a metal deactivating agent, a friction improver, an antirust agent, a clearing agent, a dispersing agent, an oiliness additive, an antioxidant, and an antiwear agent. The engine oil composition has excellent clearing and dispersion effects, and is capable of preventing adhesion of a piston ring and keeping an engine clean; good viscosity-temperature characteristics, excellent base value retentivity and oil viscosity ascending ability can inhibit the generation of black oil sludge so that the engine is relatively clean; the coal slurry oil fuel engine oil composition has excellent high-temperature oxidization resistance stability, high-shear stability and rubber compatibility, good low-temperature starting property and excellent fuel economy and no corrosion and rustiness to moving components, and is capable of ensuring that the oil products keep enough oil film strength and reducing wear and evaporation loss.

Description

technical field

[0001] The invention belongs to the field of internal combustion engine lubricants, in particular to a coal slurry oil fuel engine oil composition. Background technique

[0002] Coal slurry oil is oil (COM) in which dry coal powder is mixed with diesel oil or heavy oil into a slurry. Usually, the particle size of pulverized coal is generally 1-6um, and the largest one is generally controlled below 15um, with an average of about 2um. The finer the particle size, the better the combustion, but the higher the cost; the larger the particle size, the lower the cost, but the quality of injection and combustion deteriorates, and at the same time, the wear of parts is increased. After diesel oil contains coal powder, the viscosity increases; the higher the coal content, the greater the viscosity, and the higher the temperature, the greater the noise and vibration, and the greater the difference in viscosity between diesel and diesel. The chemical composition of COM...

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