摘要
基于SimaPro软件,采用ReCiPe Midpoint(H)V1.13方法对传统燃煤机组(方案一)和集成有机朗肯循环(ORC)与太阳能的燃煤碳捕集发电系统(方案二)进行生命周期评价,分析了碳捕集系统再生能耗及碳捕集率对环境影响的敏感性。结果表明:在功能单元所有选定类别的影响得分中,气候变化潜势(CCP)得分最高,臭氧损耗潜势(ODP)得分最低;除CCP外,对于其他影响类别得分,方案二>方案一;对于人体毒性潜势(HTP)得分,煤炭开采和运输阶段贡献最大,而其他影响类别中系统运行阶段的贡献最突出;随着碳捕集率增大,单位电量CCP得分减小,其他环境指标得分增大;随着再生能耗增加,集成系统所有环境影响类别得分均增大。
Based on SimaPro software,the ReCiPe Midpoint(H)V1.13 method was used to conduct life cycle assessment of traditional coal-fired unit(scenario I)and coal-fired carbon capture power generation system integrating organic Rankine cycle(ORC)with solar energy(scenario II).The sensitivity of regeneration energy consumption and carbon capture rate of the carbon capture system to the environmental impact was analyzed.Results show that among the impact scores of all selected categories of the functional unit,the climate change potential(CCP)score is the highest,and the ozone depletion potential(ODP)score is the lowest.Except for CCP,other impact categories’scores are characterized with scenario II>scenario I.Regarding the human toxic potential(HTP)score,the contribution of the coal in the mining and transportation stages is the biggest,while in the other impact categories the most contribution is given in the system operation stage.As the carbon capture rate increases,the CCP per unit of electricity decreases,and the scores of other environmental indicators rise.With the increase of renewable energy consumption,the scores of all environmental impact categories of the integrated system rise.
作者
董志坚
叶学民
宋睿哲
李春曦
DONG Zhijian;YE Xuemin;SONG Ruizhe;LI Chunxi(Department of Power Engineering,North China Electric Power University,Baoding 071003,Hebei Province,China;Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology,North China Electric Power University,Baoding 071003,Hebei Province,China;Baoding Key Laboratory of Low Carbon and High Efficiency Power Generation Technology,North China Electric Power University,Baoding 071003,Hebei Province,China)
出处
《动力工程学报》
CAS
CSCD
北大核心
2022年第7期647-656,共10页
Journal of Chinese Society of Power Engineering
基金
国家自然科学基金资助项目(51606066)。
关键词
燃煤碳捕集发电系统
太阳能
有机朗肯循环
生命周期评价
敏感性分析
coal-fired carbon capture power generation system
solar energy
organic Rankine cycle
life cycle assessment
sensitivity analysis
