A kind of large proportion methanol gasoline catalyst and its preparation method

Abstract

The invention provides a large-proportion methanol gasoline catalyst and a preparation method thereof. A product mark of the large-proportion methanol gasoline can be expressed by M50 and M85, wherein M represents a first letter of methanol; 50 and 85 respectively represent 50% of methanol and 85% of methanol are added in the gasoline The large-proportion methanol gasoline catalyst is obtained by mixing refined methanol with a purity of 99.9% and national standard gasoline or naphtha and component oil in presence of a special catalyst. A preparation method of the special catalyst is composed of high alcohols (C3-C11), alkanes (C5(C5H12), C6(C6H14), C7(C7H16), C8(C8H18) or CH3NO2), an organic amine, a plurality of esters and auxiliary inhibitors. The large-proportion methanol gasoline produced by the invention passes through a road test longer than 10,000 KM, without changing an engine structure. The large-proportion methanol gasoline is powerful, can be easily started at a low temperature, has no gas block at a high temperature, is not stratified when being contacted with water, can resist rubber swelling, and is low in production cost and flexible in operations. Besides, all project technical indicators are superior to those of national standard gasoline for vehicles. Practice proves that the large-proportion methanol gasoline catalyst has the advantages in a plurality of aspects such as technology, economy, feasibility for large-scale application, and the like, and has obvious competitive advantages as alternative energy.

Description

technical field [0001] The invention relates to an alternative energy source for vehicles, and more specifically, belongs to a large-proportion methanol-gasoline additive and a preparation method thereof. Background technique [0002] Since the emergence of the second oil crisis in the 1970s, many scholars and entrepreneurs around the world have conducted extensive trial research on methanol gasoline, an alternative fuel for vehicles. The United States, Germany, Japan, Sweden and other countries have developed methanol gasoline And applications have given a lot of financial support and policy preference. my country has actively developed methanol gasoline since the 1980s, and has entered the promotion and practical stage of M15-M30. The world is about to enter the post-oil era. According to the predictions of the U.S. Department of Energy and the World Energy Council, the global petroleum energy can be exploited for more than 30 years, and China's exploitable life is less t...

AI Technical Summary

Problems solved by technology

[0007] Methanol gasoline has a high octane number, is clean and environmentally friendly, and has good combustibility. It is the best alternative energy source for gasoline. However, there are still technical problems such as small replacement ratio, poor stability, moisture stratification, metal corrosion and rubber swelling, which restrict the use of methanol gasoline. Development, in which the substitution ratio and stability are key issues, including the compatibility of methanol and gasoline, water resistance and low temperature stability, etc.

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