A kind of high-alcohol gasoline additive composition and its methanol gasoline for engine at low temperature

Abstract

The invention belongs to the field of high-methanol gasoline at a low temperature and particularly relates to a high-methanol gasoline additive composition for an engine at the low temperature and methanol gasoline of the high-methanol gasoline additive composition. The high-methanol gasoline additive composition is characterized by being prepared from the following components in percentage by mass: 30 percent of a modifier A, 32-42 percent of a modifier B and the balance of acetone and being prepared by the following special steps of 1) after heating a stirring tank, adding n-decyl alcohol, mixing bis(2-dimethylaminoethyl) ether in the n-decyl alcohol, and performing centrifugal stirring for 8-20 min to obtain the modifier A, wherein the number of revolutions for centrifugal stirring is 1500 r / min, and the mass ratio of the bis(2-dimethylaminoethyl) ether to the n-decyl alcohol is 1 to 5; 2) after heating the stirring tank, adding isodecanol, mixing anhydrous hydrazine in the isodecanol, and performing stirring for 8-20 min to obtain the modifier B, wherein the mass ratio of the anhydrous hydrazine to the isodecanol is (1 to 7)-(1 to 6); and 3) mixing the modifier A, the modifierB and the acetone to obtain the additive composition. The additive at the low temperature and the methanol gasoline thereof are clean and environmentally friendly and are low in noise and less in yield of formaldehyde.

Description

technical field [0001] The invention belongs to the field of high-alcohol gasoline at low temperature, and in particular relates to a high-alcohol gasoline additive composition for engines at low temperature and methanol gasoline thereof. Background technique [0002] Alcohol fuels are currently mainly methanol and ethanol. Alcohol fuels have a high octane number and are good gasoline alternative fuels. Alcohol fuels are mainly used in two forms: mixed alcohol combustion and pure alcohol combustion. Due to its cleanliness, methanol fuel gasoline is the main direction of research and application. Benzene, sulfur, phosphorus, benzene, halides, and heavy metals are usually added to the existing additive formula to improve the problems of stratification, swelling, and corrosion of methanol gasoline, but these harmful substances are extremely irritating and toxic to the human body. [0003] When the engine is cold started in winter, the air temperature is low and the air flow ra...

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Problems solved by technology

[0005] The present invention is to overcome the technical prejudice that the methanol content should not be greater than 60% in winter from the perspective of high noise and pollution at low temperature start-up. Accordingly, the applicant strives to provide a high-alcohol gasoline additive composition with reduced noise and pollution.

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