摘要
利用全生命周期分析方法,计算中国主要9种终端能源的化石能耗及温室气体排放强度(碳强度),涵盖原料制取、运输、燃料制取和运输四个阶段,包含煤炭、石油和天然气3种化石能耗分析。结果表明电力碳强度最高,石油基、天然气基和煤基燃料碳强度依次升高;低采收率、高CH4泄露水平和低生产转化率是碳强度高的主要原因。
This paper presents life cycle analysis(LCA) fossil energy consumption(EC) and greenhouse gas(GHG) emissions intensity of 9 types of China's current dominant final energies(FE).The analysis covers the entire life cycle including the following 4 sub-stages: feedstock production,feedstock transportation,fuel production and fuel transportation.3 types of primary energy which are crude coal,crude NG,and petrol are considered to be the fossil energy source of the studied.The results indicate that for the LCA EC and GHG levels in China,those FE have relatively high values with the order of from high to low are electricity,coal-based,NG-based and petrol-based fuels,and the main impact factors inducing low extraction efficiency,high CH4 leakage levels during the feedstock production stage and low transformation efficiency during fuel production stage.
出处
《中国软科学》
CSSCI
北大核心
2009年第S2期208-214,共7页
China Soft Science
基金
国家自然科学基金支持的重大国际(地区)合作研究项目(50520140517)
关键词
终端能源
碳强度
全生命周期
final energy
carbon intensity
life cycle analysis
