Stable synergistic of methanol diesel for vehicle

Abstract

The invention discloses an additive which can stabilize and synergize the effects of a vehicle-used methanol-diesel. Under the condition of stirring, certain amounts of n-caprylic alcohol, n-amyl alcohol, oleic acid, naphthenic acid, Span-80 and acrylic ester are respectively driven into a reactor and stirred at a slow speed to be fully and evenly mixed; then under the condition of cooling, set amount of triethanolamine is gradually added and fully stirred for complete reaction; after cooling to room temperature, barreling and sealing, the additive of the invention is obtained. The additive of the invention can enhance the burning efficiency of the methanol-diesel and achieve the purpose of saving the diesel. The methanol-diesel made by using the additive is not only transparent and stable but has good water resistance and cold resistance and can be stored for a long term; the performance indexes of the methanol-diesel can basically meet the requirements of commercial diesels, can be randomly mixed with other diesels without the phenomena of emulsion separation and phase separation and can be conveniently used; the additive can improve the shortcoming of low flash point of the methanol diesel and make up the deficiency of low cetane value of the methanol.

Description

technical field

[0001] The invention belongs to the technical field of methanol fuel for vehicles, and in particular relates to a stable and synergistic additive for methanol diesel for vehicles. Background technique

[0002] With the rapid development of the world economy, the demand for oil in all countries in the world is constantly increasing. Based on the reality of the relative shortage of oil energy in my country, it is a requirement for national energy security to actively develop the fuel substitution industry. At present, there are obvious gaps in the research and development of methanol diesel across the country. It is difficult to solve the phenomenon of low-temperature phase separation resistance, water resistance phase separation and short shelf life, and the physical and chemical performance indicators of the produced methanol diesel oil do not meet the requirements of vehicle diesel oil. Performance requirements, economic value is not high.

[0003] Diesel i...