A novel integrated system with power generation, CO2 capture, and heat supply
A novel integrated system with power generation, CO2 capture, and heat supply
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DOI：
10.1016/j.applthermaleng.2013.07.016
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发表时间：
2013-11
影响因子：
6.4
通讯作者：
Gang Xu;Y. Wu;Yongping Yang;Kai Zhang;Xiaona Song
中科院分区：
文献类型：
--
作者：
Gang Xu;Y. Wu;Yongping Yang;Kai Zhang;Xiaona Song
目前，燃煤电厂二氧化碳捕集技术对降低中国和国外的二氧化碳排放具有重要意义。基于单乙醇胺(MEA)的化学吸收是一种比较成熟的电厂大规模减排二氧化碳的技术。但该技术能耗大，降低了发电机组的效率。在对典型的基于MEA的CO2捕集工艺进行深入分析的基础上，提出了一种集发电、CO2捕集和供热于一体的新型一体化系统。通过系统集成，回收二氧化碳捕集过程中释放的低温能量，用于加热发电机组冷凝水和地板辐射采暖系统循环水。结果表明，该系统具有较好的热力学和技术经济分析能力，为低能耗脱除CO2提供了一条新途径。
Nowadays, CO2capture in coal-fired power plants is of great significance for reducing CO2emission in China and abroad. Monoethanolamine (MEA)-based chemical absorption is a comparatively mature technology for large-scale CO2mitigation in power plants. However, this technology causes great energy consumption and decreases the efficiency of power generation unit. After conducting an in-depth analysis of a typical MEA-based CO2capture process, this paper proposes a new integrated system with power generation, CO2capture and heat supply. By system integration, the low-temperature energy released from CO2capture process are recovered to heat the condensed water in the power generation unit and the circulating water in the radiant floor heating system. Results show that the new system exhibits well from perspective of thermodynamic and techno-economic analysis and the promising results obtained provide a new approach for CO2removal with low energy penalties.