Methanol gasoline stabilizer

Abstract

The invention discloses a methanol gasoline stabilizer. The methanol gasoline stabilizer is formed by mixing the following components in percentage by mass: 18.0 to 31.0 percent of 2-octylame, 15.0 to 29.5 percent of N-tert-butyl-piperazine, 15.0 to 24.5 percent of 4-N-butoxy-benzonitrile, 13.0 to 24.0 percent of allyl phenoxyacetate, 10.0 to 20.5 percent of 1,3-acetone dicarboxylate, and 9.0 to 19.5 percent of 3-dimethyl aminoanisole. Before methanol gasoline is prepared, first, 0.4 to 0.8 mass percent of the stabilizer disclosed by the invention is added to the methanol, and the methanol and the stabilizer are mixed uniformly, and then, performing subsequent processes of preparing the methanol gasoline after ultrasonic treatment is performed at a normal temperature. The improvement effect of the storage stability of the methanol gasoline using the methanol gasoline stabilizer disclosed by the invention is remarkable; the anti-water separation performance is improved obviously; through engine stand and actual road driving tests, the gasoline consumption, the output power, the tail gas emission and the like of the methanol gasoline are equivalent to those of the methanol gasoline with the same grade.

Description

technical field [0001] The invention belongs to the technical field of methanol replacing vehicle fuel, and relates to an additive for methanol gasoline, in particular to an additive for improving the stability of methanol gasoline. Background technique [0002] With the increasing shortage of world oil resources and the increasing air pollution, the energy crisis has become the bottleneck of economic development, and new alternative fuels have attracted the attention of all parties. my country's dependence on foreign oil has exceeded 53%, and energy and environmental issues restrict the rapid development of my country's economy. my country is a country that is poor in oil and gas but relatively rich in coal. It is completely feasible to use coal to produce methanol to replace part of the oil. Using methanol as an alternative fuel for internal combustion engines is an effective way to protect the environment and use energy rationally. According to the National Development a...

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Problems solved by technology

Wherein partial saponification ammonium soap has no commercially available product, is the incomplete saponification product fatty acid ammonium that is produced by partial saponification reaction of animal and vegetable oil, waste oil or organic acid and organic amine or inorganic ammonium; 200810069817.9 discloses a kind of water-containing methanol gasoline and its The preparation method, the water content of industrial methanol used is 2-5%, the addition amount is 14.5%-48%, and the methanol must be modified before adding; 201010260367.9 discloses a polyetheramine and its production method and its application in methanol gasoline, Using polyetheramine prepared by addition of hexylamine and ethylene oxide as a methanol gasoline additive, combined with butanol or octanol, the resulting methanol gasoline has a water resistance of 1% to 2%; 201010242644.3 discloses a A certain amount of xylene is added to the methanol gasoline additive. The addition of xylene will significantly increase the emission of toxic substances in the tail gas, which is not conducive to environmental protection and human health. The test conditions for anti-phase separation performance are -20°C, 4h, and 0.15% water, 4h. These conditions are relatively mild and are different from the actual storage conditions of methanol gasoline.

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