Gasoline octane value booster and preparation method thereof

Abstract

The invention discloses a gasoline octane value booster which is prepared from the following raw materials in parts by mass: 50-55 parts of an active component, 1.5-4 parts of an antioxidant, 1-3 parts of a clean dispersing agent, 4-7 parts of a synergic stabilizing agent, 5-10 parts of a cosolvent and 30-35 parts of a solvent, wherein the active component is one of the following aromatic ester compounds: isocaprylic acid phenethyl ester, isocaprylic acid toluene diisocyanate, oxalic acid benzene diester, oxalic acid benzyl butyl phthalate, phthalic acid di(2,4-ditertiary butyl p-methyl) phenyl ester, phthalic acid di(p-ethyl) phenyl ester, 4-methyl phthalic acid di(o-methyl) phenyl ester, 2,5-dimethyl phthalic acid di(p-ethyl) phenyl ester, 5-methyl phthalic acid di(2,4-ditertiary butyl p-methyl) phenyl ester and 2,5-dimethyl phthalic acid di(2,4-ditertiary butyl p-methyl) phenyl ester; or the active component is fatty grease dibutyl carbonate or diamyl carbonate. The gasoline octane value booster is green and environmentally friendly and is good in compatibility with gasoline.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a gasoline octane booster and a preparation method thereof. Background technique [0002] When gasoline is combusted in the cylinder, if the combustion of gasoline is not normal, knocking will be caused. The root cause of knocking lies in two points, one is that the engine compression ratio is too high, and the temperature of the combustible fuel gas is too high when it is compressed to the top dead center of the cylinder; the other is due to the nature of the fuel. Gasoline is too heavy or certain hydrocarbon components are easily oxidized to form peroxides. Peroxides are not easy to decompose and coalesce, which reduces the spontaneous ignition point of gasoline. Before the engine spark plug ignites, the piston compresses the oil-gas mixture in the cylinder, and the gas volume To reduce the temperature rise, the self-igniting oil-gas mixture flame under high...

AI Technical Summary

Problems solved by technology

Metallic ash-type octane number improvers are the earliest octane number improvers used by human beings, represented by tetraethyl lead (TEL), ferrocene, methylcyclopentadiene manganese tricarbonyl (MMT), etc. Metallic ash-type octane number improvers are the octane number improvers with the best anti-knock efficiency so far, and the dosage is only at the ppm level. However, long-term use of metal-type octane number improvers has residual problems, resulting in increased ash content. , causing engine spark plug clogging, cylinder wear, and poisoning of the three-way catalytic system of automobile exhaust. The existence of metal ions in the flue gas is the culprit for the formation of PM colloids

At the same time, metal octane number improvers are also highly toxic (such as TEL, MMT, etc.), which will cause health hazards in the blood system, endocrine system, and reproductive system after human contact, and their use has been gradually restricted or banned.

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