Methanol gasoline with low gas resistance

Abstract

The invention discloses methanol gasoline with low gas resistance. The methanol gasoline with low gas resistance is prepared by mixing and blending 60-80 wt% of base oil, 10-15 wt% of constituent oil and 10-30 wt% of denatured methanol, wherein the constituent oil is a mixture composed of 25-30 wt% of aromatic oil and 70-75 wt% of naphtha; the denatured methanol is formed by mixing methanol with a volume ratio of 95-98% and a depressurization additive with a volume ratio of 2-5%; the depressurization additive is prepared by blending the main materials of polymethoxy dimethyl ether with 3-6 polymerization degrees and dimethyl carbonate, and the auxiliary materials of ethanol, isopropanol, ethylene glycol monomethyl ether, methyl tertiary butyl ether, isoamylol and isooctanol. According to methanol gasoline with low gas resistance disclosed by the invention, the saturated vapour pressure of the low-proportion methanol gasoline is obviously decreased by changing the property of the base oil and adding the depressurization additive.

Description

technical field [0001] The invention relates to a methanol gasoline, in particular to a methanol gasoline with reduced saturated vapor pressure. Background technique [0002] Energy depletion and environmental pollution are serious problems facing the world. With the rapid growth of the number of automobiles in the world, the contradiction between the supply and demand of petroleum-based fuels has become increasingly prominent worldwide. The total amount of petroleum consumed by automobile engines is huge, and exhaust emissions have become one of the main sources of air pollution today. Considering resources, environment, economy, etc., the research and development of clean alternative fuels and the rational use of resources have become increasingly prominent practical issues. [0003] Methanol fuel is rich in sources, which can reduce vehicle operating costs and save a lot of oil resources. Therefore, methanol as an alternative fuel for vehicles has practical and economic ...

AI Technical Summary

Problems solved by technology

However, the saturated vapor pressure experiment of component oils shows that the Reid vapor pressure (RVP) of blended gasoline is restricted by the blending components of cracked gasoline. After methanol is mixed in, due to the azeotropic effect, RVP rises by 10-15kPa, although in methanol Adding a small amount of C5-C9 alcohol-ether mixtures, or adding surfactants to suppress the specific evaporation rate and Reid vapor pressure can only reduce 5-7kPa, and the RVP still cannot be reduced to the ideal level.