生物质发电能耗和温室气体排放分析  

Life Cycle Analysis of Energy Consumption and Greenhouse Gas Emissions of Biomass Power Plant

作　　者：戴安 胡文博 DAI An;HU Wenbo(State Grid Electric Power Research Institute,Nanjing 210000,China;State Grid Electric Power Research Institute Wuhan Efficiency Evaluation Co.Ltd.,Wuhan 430074,China)

机构地区：[1]国网电力科学研究院有限公司,江苏南京210000 [2]国网电力科学研究院武汉能效测评有限公司,湖北武汉430074

出　　处：《工业加热》2022年第9期9-14,共6页Industrial Heating

基　　金：国家电网公司科技项目(5400-202031205A-0-0-00)。

摘　　要：利用混合生命周期评估方法对五种生物质发电系统的能耗和温室气体(GHG)排放进行了分析,结果表明:不考虑农业投入时,生物质直燃发电和气化发电系统全生命周期收储运消耗的一次化石能源消耗占系统总消耗29%~33%,能源替代率为91%~98%,替代成本在15~52元/GJ;生物质电力的体现㶲强度在0.32~0.75 GJ/GJ,㶲的替代成本在15~58元/GJ;生物质电力的GHG体现排放强度在5~40 kg CO-eq/GJ,GHG减排率在83%~99%;生物质发电在减少GHG排放的同时也能减少SO排放。生物质发电具有良好的可持续性,能在节能减排中发挥重要作用。A hybrid life cycle assessment method was used to analyse energy consumption and GHG emissions over the entire life cycle of five kinds of biomass power plant.The results show that the primary fossil energy consumption accounts for 29%~33% of the total system consumption during biomass direct combustion power generation and biomass gasification power generation, while energy substitution rate is 91%~98% and substitution cost is 15~52 yuan/GJ.The embodied exergy intensity of biomass power is 0.32~0.75 GJ/GJ and substitution cost of exergy is 15~58 yuan/GJ.The GHG embodied emission intensity of biomass power is 5~40 kg CO-eq/GJ and GHG reduction rate is 83%~99%.Biomass power generation can reduce GHG emissions while also reducing SOemissions.The results indicate that biomass power has good sustainability and may play a positive role in emission reduction.

关 键 词：能耗 温室气体 直燃发电 生命周期 

分 类 号：TK6[动力工程及工程热物理—生物能]