Preparation method and device of methanol fuel finished gasoline for vehicles

Abstract

The invention relates to a preparation method and device of methanol fuel finished gasoline for vehicles. The method provided by the invention comprises two steps of preparation of modified methanol and preparation of the methanol fuel finished gasoline for vehicles, wherein the preparation of the modified methanol is realized by the processes of proportioning, preheating, catalytic reaction and heat exchange of methanol and auxiliary materials; and the preparation of the methanol fuel finished gasoline for vehicles is finished by modulation of the modified methanol and modulation of the methanol fuel finished gasoline. The device provided by the invention sequentially comprises a mixer 2, a mixer 4, a catalytic reactor 5, a condensing, cooling and preheating device I1, a preheating and cooling device II3, a low-temperature cooler 6 and a receiving tank 7. Because an integrated device is designed for condensing, cooling and preheating raw materials, the invention ensures that the residual heat of reaction products is recycled, the process is simple and no emission of 'the three wastes' is realized; and simultaneously, the catalytic reactor is heated in a far-infrared radiation explosion-proof type, thus the invention has the advantages of obvious effects of energy saving, environmental protection and safety.

Description

technical field [0001] The invention relates to the field of petrochemical fuel oil, in particular to a method and a device for preparing methanol fuel finished gasoline for vehicles with a large proportion of methanol fuel for vehicles. Background technique [0002] In recent years, in the face of the severe energy situation, the country has established a coal-based, diversified development policy, focusing on the development of alcohol-ether fuel alternative energy development guidelines. Recently, methanol fuel has been identified as a transitional alternative fuel for vehicles in the next 20 to 30 years by the "Special Report on the Development of Alcohol Ether Fuels and Alcohol Ether Clean Vehicles in my country (Draft for Comment)" issued by the National Development and Reform Commission. The Standardization Management Committee of the People's Republic of China announced the approval of the "Methanol for Vehicle Fuel" standard, which will come into effect on November ...

AI Technical Summary

Problems solved by technology

The process conditions are 250-350°C and 3.0-5.0 MPa. Although the conditions are milder than those of direct coal liquefaction to oil, it is still high temperature and high pressure, so the construction investment and operation costs are high, and the safety hazard is also relatively large.

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