The invention discloses a high-cleanness
alcohol hydrogen oil for compression-ignition internal
combustion engines and a preparation method thereof. The high-cleanness
alcohol hydrogen oil for compression-ignition internal
combustion engines is prepared from the following components in parts by weight: 26.5-55 parts of
methanol, 21-36 parts of
benzene, 17-32 parts of
petroleum ether, 4-9 parts of
cyclohexane and 1.5-5.0 parts of assistant. The assistant comprises a modifier, an oxidizer, an activator, an antiknock, a stabilizer, a foam reducing composition, a detergent dispersant, a cosolvent, a catalyst, a high-efficiency
combustion improver, a
metal corrosion inhibitor and an
antiwear additive. By adding various assistants, the method solves the problem that the
methanol can not be easily dispersed stably and can be easily accumulated and separated in fuel in the
methanol fuel and additives thereof, and also solves the problems of poor stability, lower
flash point, lower
cetane number, poor ignition characteristic,
metal corrosion, hot air resistance, rubber swelling, foaming and the like in the existing
alcohol hydrogen oil.