基于生命周期的天然气基汽车燃料的分析

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。

A Life Cycle Analysis of Natural Gas Based Automotive Fuels

The objective of this study is to carry out an economic, environmental and energy (EEE) life cycle study to natural gas based automotive fuels with conventional gasoline in abundant region of China. A set of indexes of four fuels/vehicle systems based on life cycle is assessed in terms of impact of EEE, which natural gas produces compressed natural gas (CNG), methanal, Di-methy Ether (DME) and Fischer-Tropsch Diesel (FTD). The study included fuel production, vehicle production, vehicle operation, infrastructure, and vehicle end of life as a system for each fuel/vehicle system. A generic gasoline fueled car is used as a baseline. Data have been reviewed and modified based on the best knowledge available to Chongqing local sources. The results indicated that direct use of CNG in a dedicated or bi-fuel vehicle is an economical choice for abundant region in China. It is most energy efficient and more friendly environmental. It has benefit from the results of this study to find a substitute automotive energy and make an energy policy in abundant region.