Coal-based Diesel Additives

Abstract

The invention relates to a coal-based diesel assistant which is composed of the following components in percentage by mass: 5-30% of propanediol nitrate, 20-65% of dimethyl carbonate, 5-35% of methyl acetate, 1-10% of propylene glycol monobutyl ether and 0.5-6% of cetane number improver. The test result indicates that the coal-base diesel fuel mixed from assistant and -10# diesel in a volume ratio of 1:2 has the advantages of high cetane number and low cost; the power performance, fuel economical efficiency, cleanness, abrasion, emission and other indexes respectively satisfy the national standard; and after the engine operates for 100 hours, the torque is lowered by 5.23%, the power is lowered by 4.94%, the fuel consumption is lowered by 1.55%, the fuel consumption is increased by 8.03%, the emission is equivalent to diesel, and the smoke emission is obviously lowered. The coal-based diesel assistant provided by the invention does not need to modify the engine, can be mixed with commercially available diesel in any ratio, and can be used at low temperature.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a low-energy and high-efficiency diesel fuel additive. Background technique [0002] With the development of dieselization of automobile models, the share of diesel vehicles in the automobile market is increasing. In 2003, the market share of diesel vehicles in the European market has reached 44%, and 100% of heavy-duty vehicles and 90% of light-duty vehicles in European and American countries are driven by diesel engines. Diesel cars in Europe have accounted for 32% of the annual output of cars, and France, Spain and other countries have even reached more than 50%. The share of diesel vehicle production in China's total vehicle production also rose from less than 7% in 1985 to 31.9% in 2002. At present, my country consumes 60 million to 70 million tons of diesel oil every year, and one-third relies on imported diesel oil to balance the contradiction between supp...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems existing in the existing alternative fuels, to provide a low production cost, the physical and chemical properties are basically the same as commercially available diesel oil, energy saving and environmental protection, no need to modify the engine and can be mixed with commercially available diesel oil in any proportion Coal-based diesel additives used

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