Methanol gasoline additive and preparation method thereof and methanol gasoline

Abstract

The invention provides a methanol gasoline additive, a preparation method thereof and methanol gasoline. The methanol gasoline additive comprises the following materials: 0.1 to 25 weight percent of antioxidant corroding agent, 1 to 25 weight percent of detergent dispersant, 0.1 to 4 weight percent of promoting combustion antiknock agent and 50 to 95 weight percent of mutual solvent. The methanol gasoline additive protects devices in an automobile such as rubber, metal, and the like, makes the cold state easy, has full combustion and strong power and reduces the emission while realizing the stable solubility of the methanol and the gasoline.

Description

technical field [0001] The invention relates to clean fuel technology, in particular to an additive for methanol gasoline. Background technique [0002] Gasoline has been the main fuel for light vehicles for a long time, but this usage pattern is increasingly constrained by serious environmental pollution and increasingly scarce resources. In order to improve this dilemma, a variety of energy alternatives have been adopted at home and abroad, such as natural gas fuel, ethanol gasoline fuel, vegetable oil fuel, hydrogen fuel, etc. However, if these alternatives are to be popularized on a large scale, there are serious defects: natural gas is used as a vehicle fuel, and the cost is relatively low, but the engine unit of the vehicle needs to be modified, which costs a lot, and the natural gas storage tank takes up a large amount of the back box Space; ethanol gasoline fuel needs to use a large amount of ethanol extracted from corn, sugarcane and other grains, and the soaring g...

AI Technical Summary

Problems solved by technology

However, if these alternatives are to be popularized on a large scale, there are serious defects: natural gas is used as a vehicle fuel, and the cost is relatively low, but the engine unit of the vehicle needs to be modified, which costs a lot, and the natural gas storage tank takes up a large amount of the back box Space; ethanol gasoline fuel needs to use a large amount of ethanol extracted from corn, sugarcane and other grains, and the soaring global grain prices will inevitably make it difficult to implement this plan; vegetable oil fuel uses waste cooking oil as fuel for engines, and there are also limited sources , engine damage and other disadvantages; hydrogen energy, as a better energy alternative, has not been completely resolved in terms of how to store hydrogen for a long time and use it safely every day

[0005] The prior art has made some progress in increasing the blending ratio of methanol, cold start, and the compatibility of high-polarity methanol and low-polarity gasoline, but there are also some shortcomings and deficiencies, which are mainly reflected in: 1. In order to solve Compatibility and other issues, selected benzene, methyl tert-butyl ether and other additives that are very polluting to the environment, it is difficult to carry out large-scale promotion in practical applications; 2, because methanol is a highly polar solvent, a small amount of Water, long-term use has a corrosive effect on engine metal parts, rubber seals, etc. Although the existing technology has solved the problem of two-phase compatibility between methanol and gasoline, it has not proposed a solution for anti-corrosion and anti-rust; 3. The amount of additives used Excessively large, making the cost of use rise

4. Without changing the power system, since the vapor pressure of methanol is lower than that of conventional gasoline, there will be air resistance during use, which will affect the performance of the car engine

5. The calorific value of methanol is lower than that of gasoline, without adding a combustion accelerator, the power will be greatly affected

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