ABSTRACT

This chapter focuses on modeling and analysis of supercritical coal-fired power plant (SCPP) integrated with Postcombustion CO2capture (PCC), and its ability to respond to electricity demand changes within the limit of the UK Grid Code. It presents the development of the dynamic model suitable for investigating the response of SCPP to changes in the demand under the UK Grid Code requirement. The UK Grid Code has strict requirements on power generation companies and they are under obligation to comply with the requirements. For grid system operation, it is required that the power generated is continuously matched to demand. The study uses the driving force method to reduce exergy destruction and hence reduce energy consumption in the PCC process. Three configurations of the monoethanol amine (MEA)-based PCC based on chemical absorption were integrated with the SCPP and analyzed. This includes absorber intercooling (AIC), split flow approach (SF), and combination of both methods (AIC+SF).