Alcohol-based fuel composite additive as well as preparation method and application thereof

Abstract

The invention discloses an alcohol-based fuel composite additive as well as a preparation method and application thereof, and belongs to the technical field of fuel additives. The alcohol-based fuel composite additive comprises a base solvent, a cosolvent, a corrosion inhibitor and a water-dissolving agent, wherein the base solvent comprises isobutanol and camphor, the cosolvent comprises methyl tertiary butyl ether, ethyl tertiary butyl ether, methyl tertiary amyl ether, naphtha, xylene and petroleum ether; the corrosion inhibitor comprises benzotriazole, fatty alcohol-polyoxyethylene ether,alkylated diphenylamine, 2, 6-di-tert-butyl-4-methylphenol, N, N'-bis (salicylidene) -1, 3-diaminopropane and alkenyl succinate, wherein the water-dissolving agent comprises sorbitan trioleate, ethanol and methylal. The preparation method comprises the following steps: uniformly mixing and mixing the raw materials, the prepared alcohol-based fuel composite additive is good in stability, good in intersolubility and high in universality, has good environmental benefits, economic benefits and social benefits, and has a good market application prospect, and the preparation method is simple and issuitable for industrial popularization and application.

Description

technical field [0001] The invention belongs to the technical field of fuel additives, and in particular relates to an alcohol-based fuel composite additive and its preparation method and application. Background technique [0002] In the 21st century, all countries in the world will protect the environment, maintain the ecological environment, prevent and control pollution, and fully and effectively develop and utilize natural resources as an important strategy for their own economic development. At the same time, for the sake of energy security, countries get rid of their dependence on foreign crude oil imports and meet increasingly stringent environmental protection regulations for pollution control. The research on alternative fuels, especially the development and utilization of renewable resources to produce clean fuels, has become a major issue for industrial countries in the world. [0003] Alcohol-based fuel, as a new type of clean fuel, is currently the focus of rene...

AI Technical Summary

Problems solved by technology

[0004] However, due to the large differences in polarity and combustibility between methanol and ethanol and existing gasoline, there are still many problems in directly using low-carbon alcohols in gasoline

First, the calorific value of low-carbon alcohol is low, and the combustion speed is slow. Compared with ordinary gasoline, alcohol-based gasoline for vehicles has a lower theoretical air-fuel ratio, which will lead to a decrease in vehicle power, poor acceleration, and increased fuel consumption; Second, alcohols are easy to absorb water, and liquid phase separation is easy to occur. When the vehicle is parked for a long time, fuel stratification will occur, making it difficult to start the vehicle and poor stability; third, free water in alcohol-based fuels is very harmful to metals. , can corrode various steel parts, such as steel oil tanks, oil barrels, pipes, valves and other parts; in addition, in actual use, some problems have also been found, such as insufficient fuel combustion, black smoke, carbon deposits , black pot bottom, no residual liquid residue, and problems such as smoky and dazzling in use

[0005] Therefore, it is necessary to add additives to the developed alcohol-based fuel to solve the problems of alcohol-based fuel corrosion, swelling, stability, etc. However, at present, there is no additive that can effectively solve the above-mentioned problems of alcohol-based fuel. Explore an alcohol-based fuel additive with good stability, good miscibility and strong versatility to meet the needs of different markets for alcohol-based fuels such as industrial, civil and automotive

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