High-content environmental alcohol ether fuel used for compression ignition engine

Abstract

The invention discloses a high-content environmental alcohol ether fuel used for a compression ignition engine, which belongs to the technical field of alcohol ether fuel clean energy. The alcohol ether fuel comprises the following raw materials: methanol or ethanol or a mixture of methanol and ethanol, toluene, stearic acid, hexamethylphosphoric triamide, a nitryl solvent, acetone, fatty acid methyl ester, n-alkane, N-toluidine, plant oil, an alcohol fuel ether stabilizing agent, a catalysis combustion-supporting agent, an anti-knock reinforcing agent, a cetane number regulator, an eduction agent, an alcohol fuel recognition agent, an alcohol fuel rubber/plastic part corrosion and swelling inhibitor, an alcohol fuel metal corrosion inhibitor, an antioxidant anti-gum inhibitor, a metal deactivator, a corrosion inhibitor, an antistatic agent, a purification dispersant, an anti-wear repair agent, and an alcohol fuel sterilizing agent. The high-content environmental alcohol ether fuel has the advantages of stable performance, strong power, full combustion, good anti-knock property, good acceleration speed, easy starting, no air resistance, and low fuel consumption, and is especially suitable for the compression ignition engine.

Description

technical field [0001] The invention relates to an environment-friendly alcohol ether fuel for a high-content compression ignition engine, belonging to the technical field of alcohol ether fuel clean energy. Background technique [0002] As we all know, my country's national conditions are short of oil and gas, and relatively rich in coal. The primary conditions for alternative energy must meet two elements, one is rich reserves, and the other is clean combustion. [0003] Among my country's proven energy reserves, coal accounts for 94%, oil accounts for 5.4%, and natural gas accounts for 0.6%. Although my country's coal production accounts for 36.5% of the world's total output, coal reserves account for only 13% of the world's reserves. Under the current conditions in our country, the limit of annual coal output is 2 billion tons, while the annual consumption of coal in our country has exceeded 1.3 billion tons, which is approaching the limit and is just around the corner. ...

AI Technical Summary

Problems solved by technology

[0009] However, when methanol and ethanol are used as vehicle fuels, they also have many shortcomings: (1) The latent heat of vaporization of methanol and ethanol is 3.6 times and 2.9 times higher than that of gasoline, 4.1 times and 3.3 times higher than that of diesel oil, which is due to the extremely high Moreover, there are strong hydrogen bond interactions between liquid alcohol molecules, which combine to form more complex association molecules. To weaken or destroy this association, more heat must be given

The high latent heat of vaporization makes it difficult to form the mixture, which makes it difficult to start the engine at low temperature, prolongs the ignition delay period before the mixture ignites, brings difficulties to cold start, causes problems such as carburetor freezing, and increases fuel consumption, but at the same time Reduce the intake air temperature, reduce the maximum combustion temperature in the engine cylinder, improve the charging efficiency, and reduce NO x (2) The cetane number is an index to measure the ignition performance of fuel. The cetane numbers of methanol and ethanol are 3 and 8 respectively, which are much lower than diesel oil, which makes the compression ignition engine It is more difficult to use alcohol fuels for upper combustion; (3) Dynamic viscosity is an important factor affecting the lubrication and leakage of the supply system, while the viscosity of methanol, ethanol, dimethyl ether, and diethyl ether is very low, which is one-fifth of that of diesel oil. One, one-third, one-twentieth, one-fifteenth, so the sealing performance is poor, so the matching clearance of the moving parts of the fuel supply system is required to be smaller than that of diesel oil, otherwise the fuel leakage will be large and the fuel supply cannot be achieved requirements, and the lubricating performance is not as good as that of diesel oil, so the parts of the oil supply system are easy to wear, and it is necessary to improve the material of the moving parts or add lubricants, otherwise the service life of the moving parts will be reduced; (4) Methanol and ethanol are harmful to many metals in the engine fuel system , such as corrosion of copper, iron, aluminum, lead, zinc, magnesium, and many of their alloys are corrosive, even if the mixed fuel contains 3% alcohol, the corrosiveness of the fuel is greatly enhanced, and the higher the alcohol content, the more corrosive The larger; alcohol fuel also has the effect of corrosive sol on rubber and plastic, and many parts of the engine fuel system are made of rubber, plastic and other materials, thus reducing the service life of some parts