木质成型颗粒生命周期能量和温室气体排放分析  

LIFE CYCLE ANALYSIS OF ENERGY CONSUMPTION AND GREENHOUSE GAS EMISSIONS FOR WOOD PELLET

作　　者：刘华财[1,2] 阴秀丽[1] 吴创之[1] 梁伟 许金花 

机构地区：[1]中国科学院可再生能源与天然气水合物重点试验室,广州510640 [2]中国科学院研究生院,北京100049 [3]广东兆丰能源技术有限公司,珠海519100

出　　处：《太阳能学报》2013年第4期709-713,共5页Acta Energiae Solaris Sinica

基　　金：国家科技支撑计划(2011BAD22B06);中国科学院创新方向项目(KGCX2-YW-329)

摘　　要：利用混合生命周期评估方法对木质成型颗粒的可持续性进行评价,结果表明:木质成型颗粒全生命周期的能耗为0.11MJ/MJ颗粒,其中直接能耗79%,间接能耗21%,所占比例最大的是颗粒生产阶段的电力投入和生产设施投入;颗粒全生命周期的温室气体(GHG)排放为215kg CO2-eq/t颗粒,颗粒生产电力消耗造成的排放最大,其次是颗粒燃烧直接排放;生物质成型颗粒具有良好的可持续性,能在节能减排中发挥重要作用。Aiming at evaluating feasibility and sustainability of biomass pellet in China, a hybrid life cycle assess-ment （LCA） method was used to quantify energy consumption and GHG emissions over the entire life cycle of wood pellet, combining process analysis with economic input-output analysis. The results show that the wood pellet has a life-cycle energy consumption of 0. llMJ/MJ, 21% of which are related to non-energy goods. The major inputs are electricity consumption and facility for pelletproduction. The life-cycle GHG emissions is 215kg CO2-eq/t, among them the electricity consumption contributes most, followed by pellet combustion facility. The results indicate that biomass pellet may play a positive role in alleviating fossil-fuel related problems.

关 键 词：成型颗粒 能耗 温室气体排放 可持续性 

分 类 号：TK6[动力工程及工程热物理—生物能]