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以天然气生产压缩天然气、甲醇、二甲醚和柴油4种汽车代用燃料/汽车的生命周期系统为研究对象,通过与汽油/汽车基础链系统生命周期的总成本、能耗水平、排放指标等的对比分析,得出4种汽车代用燃料的排放指标均好于基础链系统,能耗水平均高于基础链系统,且压缩天然气系统以其生命周期内的能耗相对少、总成本相对最低、对生态环境更友好,成为富含天然气地区相当长一段时期内汽车代用燃料的优先选择的结论。本研究为富含天然气地区替代能源政策的制定提供了依据。
Taking the life cycle system of CNG, methanol, dimethyl ether and diesel four kinds of alternative fuel / automobile for natural gas production as the research object, through the integration with the total cost of the life cycle of gasoline / automobile basic chain system, energy consumption level, emission targets Comparing and analyzing, it is concluded that the emission indexes of four alternative fuels are better than those of the basic chain system, and the energy consumption level is higher than that of the basic chain system. Compressed natural gas system has relatively less energy consumption and relatively lower total cost during its life cycle, Friendly to the environment and the preferred choice for alternative fuels for vehicles over a substantial period of time in gas-rich regions. This study provides the basis for the development of alternative energy policies in the area rich with natural gas.