Trends on Substitutions and Fuels Purification of Vehicles

In this paper,the quality of fuels,additive,the resulting vehicle emissions and worldwide methods for fuel purification have been discussed,comparing the situation at home and abroad.The relationship between fuel quality and its impact on human health was emphasized.Additionally,some new technologies about fuel additives,fuel purification and substitutes were introduced.It was pointed out that the alternative cleaner fuel vehicles should be encouraged in large and medium-scale cities to mitigate the air pollution in China.