Additive for improving low-temperature startup of methanol diesel oil

Abstract

The invention discloses an additive for improving low-temperature startup of methanol diesel oil. The additive consists of 10-30 parts of ethyl acetate, 15-45 parts of dibutyl oxalate, 20-40 parts of diisopentyl oxalate, 0.3-5 parts of vinyl ester of versatic acid 10, 0.2-3 parts of N-(beta-aminoethyl)-gamma-aminopropyl methyl dimethoxysilane, 7-20 part of 2,5-dimethoxytetrahydrofuran, 2-15 parts of zirconium iso-octoate, 8-25 parts of 2-nitro-2-methyl-propyl nitrate, 10-40 parts of 2-methoxyl-ethyl nitrate, 15-30 parts of 3-tetrahydrofuran nitrate, 12-30 parts of methyl-benzyl-alcohol nitrate, 0.2-10 parts of 3-methyl-2-nitro-2-hexene, 0.2-10 parts of 3-ethyl-2-nitro-2-hexene, 0.1-10 parts of barium nitrate, 0-10 parts of manganese dioxide and 0-20 parts of potassium pentachloride. The low-temperature startup of the methanol diesel oil can be improved, the combustion performance of the methanol diesel oil becomes better, and the tail gas emission is obviously reduced by mixing the additive with the methanol diesel oil.

Description

technical field [0001] The invention belongs to the technical field of methanol diesel, and in particular relates to an additive used in methanol diesel, in particular to an additive for improving the low-temperature startability of methanol diesel. Background technique [0002] Petroleum is a non-renewable energy source, and the existing oil reserves are only enough to be exploited for another 50 years, so other fuels that can replace petroleum must be found. [0003] From the perspective of environmental protection, a large amount of exhaust gas emitted by internal combustion engines seriously endangers human health. The development of solar batteries, hydrogen fuel cells and other power methods is a measure to fundamentally solve the emission problem. But at this stage, these technologies are not perfect. In the future, internal combustion engines will mainly use petroleum-based fuels such as diesel and gasoline, and some hybrid fuels made of traditional petroleum-based f...

AI Technical Summary

Problems solved by technology

[0008] 1) The ignition performance is poor, and it is difficult for the diesel engine to start at a lower temperature

[0009] 2) The ignition delay period is long. When methanol evaporates and vaporizes, the compression temperature of the cylinder will be reduced, prolonging the ignition delay period

[0010] 3) Due to the long ignition delay period and the fast combustion speed after ignition, when the proportion of methanol blended is large, knocking is easy to occur in the rapid combustion stage, which affects the normal operation of the engine

Nitrate improvers contain more N elements, which will increase the NOx content in the emissions and pollute the environment, and most of them are explosives, which are very dangerous for production, transportation and storage; peroxides themselves contain more Oxygen element has certain benefits in promoting the combustion of diesel oil and improving the emission pollution of diesel engines, but because peroxide is not stable, it is easy to decompose and generate free radicals, which will increase the instability of diesel oil; low molecular weight ethers Although it is a good ignition accelerator, its volatility greatly reduces the flash point of fuel oil and also affects the storage stability of diesel alcohol fuel

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