Which provinces and cities are piloting ethanol gasoline?
1 Answers
As of April 12, 2019, the provinces and cities in China using ethanol gasoline include Liaoning, Anhui, Shandong, Heilongjiang, and Jilin. The advantages and disadvantages of ethanol gasoline are as follows: Advantages of ethanol gasoline: High octane number and good anti-knock performance. Ethanol has a high oxygen content of 34.7%. The use of ethanol gasoline can effectively reduce vehicle exhaust emissions and improve the energy structure. The production of fuel ethanol has abundant resources and mature technology. Disadvantages of ethanol gasoline: Fuel consumption will increase. Ethanol has a high latent heat of vaporization, which affects the formation of the mixture and the combustion speed, leading to a decrease in vehicle power, fuel economy, and cold start performance, which is not conducive to vehicle acceleration. Ethanol produces acetic acid during combustion, which has a corrosive effect on automotive metals, especially copper. Ethanol is prone to absorb water, and when the water content in ethanol gasoline exceeds the standard, it is easy to cause phase separation.