生物质热解液化技术的生命周期评价  

Life cycle assessment of a biomass pyrolysis and liquefaction technology

作　　者：沈峥 宋远博 高玉磊 姜继康 顾敏燕 司慧萍 SHEN Zheng;SONG Yuanbo;GAO Yulei;JIANG Jikang;GU Minyan;SI Huiping(New Rural Development Research Institute,Tongji University,Shanghai 201804,China;College of Mechanical Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]同济大学新农村发展研究院,上海201804 [2]同济大学机械与能源工程学院,上海201804

出　　处：《中国农业大学学报》2023年第5期200-206,共7页Journal of China Agricultural University

基　　金：国家重点研发计划(2019YFC1906700)。

摘　　要：为探究生物质热解液化技术能源转化过程的效率、经济性及温室气体排放,依据全生命周期评价分析原理,建立废弃秸秆热解制备液体燃料技术全生命周期模型,对该过程进行全生命周期分析,评价范围包括秸秆的收集和运输、干燥和粉碎、生物质热解、木炭加工和余热利用。结果表明:生物质热解液化技术的能量产出投入比为20.43;处理湿秸秆的纯利润约为289.38元/t,销售利润率达52.11%;CO_(2)当量排放为34.10 g/MJ。生物质热解液化是一种兼具能量效益、经济效益和环境效益等极具潜力的生物质利用技术。In order to explore the efficiency,economy and greenhouse gas emissions of the energy conversion process of biomass pyrolysis and liquefaction technology,based on the analysis principle of full life cycle assessment,a full life cycle model of waste straw pyrolysis to prepare liquid fuel technology was established,and the full life cycle analysis of the process was carried out.The assessment scope included straw collection and transportation,drying and crushing,biomass pyrolysis,charcoal processing and waste heat utilization.The results show that:The energy output-input ratio of biomass pyrolysis liquefaction conversion process is 20.43;The net profit of wet straw treatment is about 289.38 yuan/t,and the sales profit margin is 52.11%;CO_(2) equivalent emission is 34.10 g/MJ.In conclusion,biomass pyrolysis and liquefaction is a potential biomass utilization technology with energy,economic and environmental benefits.

关 键 词：生物质秸秆 生物质热解液化 生命周期评价 碳排放 

分 类 号：TK6[动力工程及工程热物理—生物能]