碳捕集电厂不同运行方式的电碳特性分析

Analysis on Relation Between Power Generation and Carbon Emission of Carbon Capture Power Plant in Different Operation Modes

碳捕集电厂具有成为未来重要电源建设选项的巨大可能性。在深入考察碳捕集电厂的技术原理、工作流程与能量流关系的基础上,深入研究了碳捕集系统内部各个功能环节的协调关系以及灵活运行的机理,从本质上定义并分析了碳捕集电厂的各类典型运行方式,包括基准运行、烟气分流、富液分流、溶液存储以及综合灵活运行方式。针对每一类典型的运行方式,深入分析了碳捕集电厂所对应的电碳特性。最后,以一台典型碳捕集电厂为实证对象构建算例,验证了所得出的研究结论。

With the development in low carbon economy and maturity of carbon capture and storage （CCS） technology, the carbon capture power plant （CCPP） might become an important option in the future power mix. Hence, it would be of significance to formulate and analyze the operation modes and characteristics of CCPP. The technology principle, energy flow and operation process of CCPP are analyzed first. Then, one basic and four flexible operation modes are identified, which are respectively named ＂basic＂, ＂flue gas diversion＂, ＂rich solvent diversion＂, ＂solvent storage＂ and ＂integrated＂. On this basis, the relation between power generation and carbon emission （PG-CE） of CCPP in different operation modes is analyzed and quantified. Finally, the validity and usefulness of the proposed research are demonstrated using numerical results. This work is supported by National Natural Science Foundation of China （No. 51107059） and Specialized Research Fund for the Doctoral Program of Higher Education （Nol 20100002110007）.