Diesel oil, ethanol and tetrahydrofuran mixed fuel applicable to diesel engine

Abstract

The invention discloses diesel oil, ethanol and tetrahydrofuran mixed fuel applicable to a diesel engine. The fuel consists of the following components in percentage by volume: 44-46% of diesel oil, 44-46% of ethanol and 8-12% of tetrahydrofuran, wherein the volume percentage purity of the ethanol is 99.5%. According to the fuel, the tetrahydrofuran which is used as a cosolvent is capable of effectively solving the problem that diesel oil and ethanol cannot be mutually dissolved, and in addition, only a small amount of the tetrahydrofuran is needed; because of a relatively high content of oxygen in the tetrahydrofuran fuel, emission of carbon smoke, carbon monoxide and hydrocarbons can be remarkably reduced; in addition, the tetrahydrofuran can be used as renewable energy and is very widein raw material source, so that dependency on petroleum resources can be also reduced to a certain extent; and because of the high volatilization of the ethanol, the oil-gas mixing process before ignition can be promoted, and in addition, since the ethanol self contains oxygen, emission can be also reduced.

Description

technical field [0001] The invention relates to the field of internal combustion engine clean energy, in particular to a novel mixed fuel suitable for diesel engines. Background technique [0002] The number of cars in China has increased from 77 million in 2010 to 217 million at the end of 2017. With the rapid growth of car ownership, the depletion of oil resources and environmental pollution are becoming more and more serious. Therefore, it is of great significance to search for new efficient and clean energy sources. [0003] Due to its high thermal efficiency, good power and reliability, internal combustion engines are widely used in various fields such as automobiles, agricultural machinery, and construction machinery. It is foreseeable that internal combustion engines will be the main prime movers of various transportation machinery in the future. Compared with gasoline engines, diesel engines have higher thermal efficiency, which is conducive to energy saving and CO...

AI Technical Summary

Problems solved by technology

However, for the combustion process of diesel engines, due to the poor volatility and good ignitability of diesel oil, it burns rapidly as soon as it is injected into the cylinder. Therefore, the fuel and air cannot be fully mixed, resulting in the formation of soot in local over-concentrated areas and the formation of NOx emissions in local high-temperature areas.

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