Methanol gasoline cosolvent

Abstract

The invention discloses methanol gasoline cosolvent which is made of, by volume percent, 15%-30% of dimethylbenzene, 25%-35% of isobutanol, 2%-10% of dimethyl carbonate, 15%-30% of isopropanol, and 18%-25% of diisopropyl ether. A preparation method of the methanol gasoline cosolvent includes adding the materials into a preparing container, mixing well, and allowing for standing for more than 1 hour to obtain the clear methanol gasoline cosolvent. 0.2%-3% of the methanol gasoline cosolvent can be added into methanol to obtain modified methanol according to volume proportion, and the modified methanol can be made into methanol gasoline containing methanol which accounts for 10%-85% of total volume ratio. The preparation method and application of the methanol gasoline cosolvent are simple, safe and low in cost. Low-temperature phase separation resistance and water-gasoline phase separation resistance of the methanol gasoline can be improved effectively, the requirements of methanol gasoline on storage, transport and use are met, and the methanol gasoline cosolvent has the advantages that cold boot using methanol gasoline is achieved and explosion resistance of the methanol gasoline is improved.

Description

technical field [0001] The invention belongs to the technical field of alcohol ether fuel additives, and in particular relates to a cosolvent mainly used for improving the phase separation resistance of methanol gasoline. Background technique [0002] With the increasingly prominent energy and environmental issues, it has become a trend for new clean energy methanol gasoline to replace ordinary gasoline. In the "Twelfth Five-Year Plan", the state put forward in due course: to focus on the development of methanol and ethanol as the main content of alternative refined oil technology, and to support the demonstration project of methanol to replace refined oil. The development of alcohol ether fuels to replace petroleum is an important direction to solve the shortage of petroleum resources in my country and implement energy conservation and emission reduction. Due to the strong polarity of methanol, the phase separation resistance of methanol gasoline is one of the important fa...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a cosolvent with good low-temperature phase separation resistance and water resistance phase separation performance, strong versatility, simple and convenient deployment and use methods, and safety, which overcomes the problems existing in most methanol gasoline cosolvents at present, and also has the advantages of Improve the difficult problem of methanol gasoline cold start and improve the antiknock performance of methanol gasoline