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在一台整车试验满足国Ⅲ排放法规要求的多点电喷汽油机上,利用强化剂(醇醚类混合剂)与甲醇和市售93#汽油按一定比例配制成M15、M30和M85强化燃料的方法进行外特性、燃油经济性和排放特性试验.研究表明:在发动机参数未做任何调整的情况下,M15和M30强化燃料对发动机的动力性和燃油经济性有所改善,而M85强化燃料的动力性降低,质量比油耗升高;随着强化燃料中甲醇比例的增加,NO_x和HC排放减少,非常规排放甲醛和甲醇排放急剧增加,乙醛排放减少,M85强化燃料的CO排放有较大幅度的减少.经普通车用三效催化器(TWC)后,NO_x、CO和HC以及甲醛、乙醛和甲醇排放有明显的改善,催化效率在85%以上.
In a vehicle test to meet the national emission regulations III multi-point EFI gasoline engine, the use of fortifier (alcohol ether mixture) and methanol and 93 # gasoline on the market according to a certain percentage formulated as M15, M30 and M85 enhanced fuel The tests of external characteristics, fuel economy and emission characteristics were carried out.The results show that M15 and M30 enhanced fuels have improved the engine power and fuel economy without any adjustment of engine parameters, while M85 enhanced fuel With the increase of the proportion of methanol in the enhanced fuels, NO_x and HC emissions decreased, the emissions of unconventional formaldehyde and methanol increased sharply, the emissions of acetaldehyde decreased, and the emission of CO of M85-enhanced fuels was more significant After TWC, NO_x, CO, HC and formaldehyde, acetaldehyde and methanol emissions have been significantly improved, and the catalytic efficiency is over 85%.