摘要
针对火电机组燃烧后碳捕集方式选择的问题,以某电厂600MW燃煤机组为研究对象,进行以烟气余热及太阳能热作为二氧化碳吸收剂解吸热源,以机组抽汽作为脱硝系统液氨蒸发器的热源的多能源综合互补利用集成方式的研究。分析集成系统太阳集热场设计中影响设计辐射强度选取的主要因素,以实际辐射资料为例进行研究,得出太阳辐射资源与最佳太阳辐射强度的关系。根据最佳辐射强度对集成系统进行经济性计算,对可行性集成系统进行技术经济分析,结果表明:在设计辐射强度下,可行性集成方案中CO2减排成本为90.8$/t,其随太阳集热场投资的减小而减小,考虑对CO2排放征税和CO2产品出售时,集成系统有望突破经济障碍。
To solve the problem of the selection mode during the post-combustion carbon capture, the thermal system of 600MW coal-fired unit as an example, an integration system using waste heat of flue gas and solar energy as heat source for amine-based chemical absorption of carbon capture system and using steam extraction as the heat source for ammonia evaporator of the selective catalytic reduction system was analyzed. The main factors influencing the selection of radiation intensity were analyzed during the designing process of solar fields in the integration system, actual radiation data was used to calculate the optimum designed solar irradiance, and the relationship between the solar resources and the best designed solar radiation intensity was obtained. The economy of the integration system was calculated according to the optimal radiation intensity, the technical efficiency of the integration system was analyzed, the results showed that CO2 emission reduction costs is 90. 8 $/t under the designed radiation intensity, and it decreases with the decrease of the solar field investments. When considering a tax on CO2 emissions and CO2 product sale, the integration system is expected to break through the economic barriers.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2014年第2期311-319,共9页
Acta Energiae Solaris Sinica
基金
中央高校基本科研业务专项(13XA38
13MS93)
北京市支持中央在京高校共建项目(2012007901)
关键词
太阳能
碳捕集
碳税
火电机组
系统集成
辐射强度
solar energy
carbon capture
carbon tax
coal-fired power plant
integration system
solar irradiance
