论非石油燃料车用发动机的前景

随着石油的不断短缺及排放标准的提高，代用燃料发动机越来越受到重视。论述了天然气、液化石油气、甲醇、乙醇及二甲醚等代用燃料的优缺点，天然气发动机虽然容易组织完全的燃烧，且CO排放少，但总体来说此发动机缺乏机动性，只适用于局部地区和局部行业。甲醇和乙醇燃料从我国能源多元化和能源安全角度出发，有重大的战略意义，醇类燃料用于汽车没有很大的困难，决策取决于系统分析，甲醚作为压燃式内燃机的燃料有很大的优越性，但要下结论为时尚早。

Talking about the Foreground of Non-petroleum Fuel Engines for Vehicles

Due to shortage of petroleum and enhancement of exhaust emissions standard, the substitute fuel engine has become more and more important.Advantages and disadvantages of natural gas, liquefied petroleum gas, methanal, ethanol and dimethyl ether are discussed. Although the natural gas engine is easy to get completely burned out and there are less CO emissions, as a whole, the engine is lack of flexibility, and is only suitable to be used in some local area and some certain lines of business. Methanal and ethanol fuel is of strategic significance from the standpoint of our energy multiple and energy security. It is not difficult to apply ethanol fuel in vehicle engine,and it is decided by system analysis; dimethyl ether has great advantages as fuel for diesel engine,but it is too early to draw a conclusion.