煤基甲醇和天然气基甲醇燃料的生命周期影响评价  

Life cycle impact assessment of coal-based methanol and natural gas-based methanol fuel

作　　者：杜家益[1] 吉炎[1] 袁银男[2] 张登攀[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013 [2]南通大学机械工程学院,江苏南通226019

出　　处：《可再生能源》2012年第8期78-82,共5页Renewable Energy Resources

基　　金：江苏省高校自然科学重大基础研究项目(08KJA47001)

摘　　要：用生命周期评价方法,对煤基M85(甲醇体积占85%的甲醇汽油混合燃料)和天然气基M85的生命周期环境影响进行评价。结果表明:与汽油相比,煤基M85和天然气基M85燃料的环境影响总水平值分别降低了41.2%和60.8%。在污染物中,VOC排放产生的环境影响最大。煤基M85的SO2排放高于天然气基M85,导致煤基M85对环境影响总水平值高于天然气基M85。煤制甲醇CO变换工艺造成的CO2排放占煤基M85全生命周期CO2排放的36%,导致其生命周期内的温室气体排放高于汽油和天然气基M85。With life cycle assessment methodology, the environment impact in life cycle of Coal- Based M85（mixture of 85% methanol and 15% gasoline by volume） and Natural Gas-Based M85 are assessed and compared with conventional gasoline. Compared with conventional gasoline, Coal- Based M85 and Natural Gas-Based M85 can reduce the overall environmental impact value （OEIV） by 41.2% and 60.8%. Among the emissions, the VOC effects the environment mostly. The SO2 emis- sion of Coal-Based M85 is higher than that of Natural Gas-Based M85, which leads to that the OEIV of Coal-Based M85 is more higher than Natural Gas-Based M85. The CO2 emission caused by CO shift conversion process of coal to methanol is 36% of the life cycle CO2 emission, which leads to that the life cycle greenhouse gases emissions of Coal-Based M85 is higher than that of gasoline and Natural Gas-Based M85.

关 键 词：甲醇 汽油 生命周期影响评价 清单分析模型 

分 类 号：TK6[动力工程及工程热物理—生物能] S216.2[农业科学—农业机械化工程]