Anti-choking additive for methanol fuel of vehicle and preparation method

Abstract

The invention discloses an anti-choking additive for methanol fuel of a vehicle. The invention aims to solve the technical problems of high vapor pressure, difficulty in starting, unsmooth oil supply, vehicle shaking, and the like, in the vehicle of the present methanol gasoline. The anti-choking additive comprises more than two of the following components in parts by weight: 1-10 parts of butanone, 1-10 parts of methyl propionate, 1-10 parts of n-butyl alcohol, 1-10 parts of butyl hexanol, 1-5 parts of 2-sulfydryl benzothiazole, 1-20 parts of petroleum calcium sulfonate and 5-20 parts of petroleum ether. The anti-choking additive disclosed by the invention is added for protecting the original self-association effect and properties of methanol, preventing the methanol gasoline from higher vapor pressure and boosting the safety, reliability and smooth oil path in the storage and use processes.

Description

technical field [0001] The invention relates to an anti-gas-blocking additive for aviation alcohol fuel used in vehicles, which is added to methanol gasoline to avoid higher vapor pressure of methanol gasoline. The invention also relates to a preparation method of the aviation alcohol fuel anti-gas barrier additive. Background technique [0002] With the rapid development of the automobile industry, the world is facing more serious problems such as oil resource shortage and environmental pollution. Therefore, vigorously developing economical, energy-saving and environmentally friendly alternative energy has become a significant and long-term strategic consideration. Methanol gasoline has become an ideal gasoline substitute due to its wide source, low production cost, good combustion effect, and less environmental pollution. [0003] The main components of methanol gasoline are composed of methanol and gasoline. After methanol is mixed with component oil, the original self-a...

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Problems solved by technology

[0003] The main components of methanol gasoline are composed of methanol and gasoline. After methanol is mixed with component oil, the original self-association of methanol is destroyed, thus causing a positive deviation effect that the saturated vapor pressure of methanol gasoline is higher than the vapor pressure of the component oil itself. Generally, the range is 10kpa-15kpa higher than the national standard of gasoline. In the use of automobiles, it will cause difficulty in starting, poor fuel supply, vehicle vibration and other adverse phenomena.

[0004] At the same time, it will cause high vapor pressure of methanol gasoline in storage. At present, many filling stations eliminate it by changing the filling gun method, which is inconvenient to operate.

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