北京大学学报：自然科学版2011，Vol.47Issue(6)：1081-1088,8.
基于EIO-LCA的燃料乙醇生命周期温室气体排放研究
Life Cycle Greenhouse Gas Emission Assessment of Fuel Ethanol Based on EIO-LCA
李小环 1计军平 2马晓明 1王靖添2
作者信息
- 1. 北京大学深圳研究生院环境与能源学院,城市人居环境科学与技术重点实验室,深圳518055
- 2. 北京大学环境科学与工程学院,北京100871
- 折叠
摘要
Abstract
A hybrid life cycle assessment model is built based on Chinese Economic Input-Output Life Cycle Assessment （EIO-LCA） Model 2007 and PLCA. The life cycle GHG emissions of cassava ethanol are calculated and its indirect emission is then allocated into 43 sectors. The results indicate that the life cycle GHG emission of cassava ethanol is 96.2 g/MJ, direct emission, indirect emission and carbon absorbed by photosynthesis is 130.2 g/MJ, 36.9 g/MJ and 70.9 g/MJ, respectively. The electric and heat power sector contributes the most emission in the indirect emission of cassava ethanol, accounts for 32.2%. Compared with traditional gasline, GHG emission reduction of cassava ethanol is not obvious. The hybrid method has the capacity to calculate the life cycle GHG emissions of cassava ethanol more comprehensively, and to reflect the distribution of indirect emission in the sectors of production chain, thus it can help improve policy making in emission reduction.关键词
燃料乙醇/生命周期评价/EIO-LCA/温室气体Key words
fuel ethanol/life cycle assessment/EIO-LCA/greenhouse gas emissions分类
资源环境引用本文复制引用
李小环,计军平,马晓明,王靖添..基于EIO-LCA的燃料乙醇生命周期温室气体排放研究[J].北京大学学报：自然科学版,2011,47(6):1081-1088,8.
