Abstract
Carbon dioxide was removed by chemical absorption processes from the flue gases of natural-gas-fired combined-cycle power plant. The main challenge of chemical absorption processes is reducing the energy requirement. This paper discusses the selection of most important parameters necessary to obtain 90% capture ratio and the lowest energy consumption for the CO2 capture and compression plants. The integrated capture processes with power plant were evaluated by using the net power-plant efficiency. Several chemical absorption process configurations were analyzed and the design parameters were compared for the different cases. The findings show decreased reboiler energy consumption for the Base case chemical absorption process configuration with 3.74–2.71MJ/kg CO2 for the modified chemical absorption process configuration of lean vapor recompression with absorber inter-cooling. The net power plant efficiency with CO2 capture and compression was increased from 49.4% (LHV) for the Base case chemical absorption process to 50.2% (LHV) for the chemical absorption process with absorber inter-cooling and lean vapor recompression. The power output reduction due to CO2 capture and compression was decreased from 48MW for the Base case chemical absorption process to 42.5MW for the case with absorber inter-cooling and lean vapor recompression.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
