车用煤基和天然气基二甲醚燃料的生命周期评价.pdf

ISSN 1674-8484 汽车安全与节能学报, 2010 年, 第1 卷 第3 期 12/ 13 CN 11-5904/U J Automotive Safety and Energy, 2010, Vol. 1 No. 3 242 —246 车用煤基和天然气基二甲醚燃料的生命周期评价 汪 映 （西安交通大学 能源与动力工程学院，西安 710049 ） 摘 要： 对煤基二甲醚和天然气基二甲醚作为车用燃料的生命周期内的单位行驶距离的能耗、温室气体 CO2 排放和主 要污染物排放进行了评估。评估中，根据了煤基和天然气基二甲醚的不同生产工艺，结合了车辆数据。结果表明：在 全生命周期内，使用天然气基二甲醚作为车用燃料，除了CO 排放略高于使用煤基二甲醚做为车用燃料外，其余各项 指标均低于使用煤基二甲醚做为车用燃料时的指标；在全生命周期内，无论是使用煤基二甲醚，还是天然气基二甲 醚做为车用燃料，它们的可挥发性有机物(VOC)、CO 和NOx 排放均比使用柴油燃料时低，但它们的能耗、温室气体 CO 、颗粒(PM) 和SO 排放均比使用柴油燃料时高。 2 2 车用燃料；二甲醚(DME); 生命周期评价 ; 能耗 ; 排放 关键词： TK16 中图分类号： Life cycle assessment of the natural gas-based and coal-based DME as vehicle fuel WANG Ying (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi ’an 710049, China) Abstract: The energy consumption, green house gas CO2 and main pollutant emissions per travel distance in life cycle were assessed when using natural gas-based dimethyl ether (DME) and coal–based DME as vehicle fuel. The assessment was based on different production technologies of the natural gas-based DME and coal-based DME and combined with vehicle data. The results show that all energy consumption and pollutant emissions of the natural gas-based DME are lower than those of the coal–based DME, except for CO emission in life cycle. The volatile organic compound (VOC), CO and NOx emissions of the coal–based DME and natural gas-based DME are lower than those of diesel, however, the energy consumption, CO2 , particulate matter (PM) and SO2 emissions of DME are higher than those of diesel.