Abstract

The purpose of this study is to alleviate the negative effect of post-combustion CO2 capture (PCC) process on the generating efficiency of a 600 MWe supercritical coal-fired power plant (CFPP) through modelling and simulation. Steady state models for a 600 MWe supercritical CFPP and a MEA-based PCC plant with corresponding compression unit were developed and integrated in Aspen Plus. In the two basic cases with steam extracted from different locations, efficiency penalty of 14.48% points and 11.89% points were caused, respectively. Subsequently, four steps were taken to improve the overall performance of the integrated process, which involves: 1) waste heat recovery; 2) throttling loss reduction; 3) capture flowsheet modification and 4) temperature difference narrowing. From the final simulation results, the efficiency penalty is reduced to 8.07% points. This study indicates that appropriate flowsheet modifications for the integrated process can significantly improve the overall energy efficiency.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.