车用沼气燃料生命周期的评价

Life Cycle Assessment of Vehicle Biogas

利用国际标准化组织的生命周期评价(LCA)标准,确定了城市垃圾厌氧发酵车用沼气燃料的生命周期评价的边界和清单分析参数,提出了生命周期清单分析(LCI)的计算方法,对垃圾厌氧发酵车用沼气燃料进行了生命周期评价.结果表明:在车用沼气燃料生命周期中,改善厌氧发酵过程是减少能源消耗的主要途径;沼气车辆运行阶段是影响环境污染物排放的关键;全球变暖对环境影响负荷贡献最大.城市垃圾厌氧发酵为城市垃圾的处理找到了可持续发展的途径.

Based on the standards of life cycle assessment (LCA) of international standards for organization, inventory parameters and boundary of vehicle biogas production LCA for anaerobic fermentation of municipal waste are defined, and calculation method for life cycle inventory (LCI) analysis was proposed. LCA of anaerobic fermentation of municipal waste for vehicle biogas production was studied. Results show that in the vehicle biogas production life cycle, improving the process of anaerobic fermentation is the main way to reduce the energy consumption. The largest environmental pollutant emissions are in the vehicle operation stage. Global warming gives the largest contribution to the environment load. The study reveals a sustainable developing way for the biogas produced by anaerobic fermentation of municipal waste. © 2015, Chinese Society for Internal Combustion Engines. All right reserved.