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Comparative potential of natural gas, coal and biomass fired power plant with post - combustion CO2 capture and compression
HighlightsA detailed comparative potential of gas-CCS, coal-CCS and BECCS is presented.Gas fired power plants with and without EGR show higher net efficiency and least efficiency penalty.Supercritical coal and biomass fired power plants show the least specific losses per unit of CO2 captured.A constant heat input results in a higher fuel flowrate and a constant fuel flow rate results in derating for biomass firing.
AbstractThe application of carbon capture and storage (CCS) and carbon neutral techniques should be adopted to reduce the CO2 emissions from power generation systems. These environmental concerns have renewed interest towards the use of biomass as an alternative to fossil fuels. This study investigates the comparative potential of different power generation systems, including NGCC with and without exhaust gas recirculation (EGR), pulverised supercritical coal and biomass fired power plants for constant heat input and constant fuel flowrate cases. The modelling of all the power plant cases is realized in Aspen Plus at the gross power output of 800MWe and integrated with a MEA-based CO2 capture plant and a CO2 compression unit. Full-scale detailed modelling of integrated power plant with a CO2 capture and compression system for biomass fuel for two different cases is reported and compared with the conventional ones. The process performance, in terms of efficiency, emissions and potential losses for all the cases, is analysed. In conclusion, NGCC and NGCC with EGR integrated with CO2 capture and compression results in higher net efficiency and least efficiency penalty reduction. Further, coal and biomass fired power plants integrated with CO2 capture and compression results in higher specific CO2 capture and the least specific losses per unit of the CO2 captured. Furthermore, biomass with CO2 capture and compression results in negative emissions.
Comparative potential of natural gas, coal and biomass fired power plant with post - combustion CO2 capture and compression
HighlightsA detailed comparative potential of gas-CCS, coal-CCS and BECCS is presented.Gas fired power plants with and without EGR show higher net efficiency and least efficiency penalty.Supercritical coal and biomass fired power plants show the least specific losses per unit of CO2 captured.A constant heat input results in a higher fuel flowrate and a constant fuel flow rate results in derating for biomass firing.
AbstractThe application of carbon capture and storage (CCS) and carbon neutral techniques should be adopted to reduce the CO2 emissions from power generation systems. These environmental concerns have renewed interest towards the use of biomass as an alternative to fossil fuels. This study investigates the comparative potential of different power generation systems, including NGCC with and without exhaust gas recirculation (EGR), pulverised supercritical coal and biomass fired power plants for constant heat input and constant fuel flowrate cases. The modelling of all the power plant cases is realized in Aspen Plus at the gross power output of 800MWe and integrated with a MEA-based CO2 capture plant and a CO2 compression unit. Full-scale detailed modelling of integrated power plant with a CO2 capture and compression system for biomass fuel for two different cases is reported and compared with the conventional ones. The process performance, in terms of efficiency, emissions and potential losses for all the cases, is analysed. In conclusion, NGCC and NGCC with EGR integrated with CO2 capture and compression results in higher net efficiency and least efficiency penalty reduction. Further, coal and biomass fired power plants integrated with CO2 capture and compression results in higher specific CO2 capture and the least specific losses per unit of the CO2 captured. Furthermore, biomass with CO2 capture and compression results in negative emissions.
Comparative potential of natural gas, coal and biomass fired power plant with post - combustion CO2 capture and compression
Ali, Usman (Autor:in) / Font-Palma, Carolina (Autor:in) / Akram, Muhammad (Autor:in) / Agbonghae, Elvis O. (Autor:in) / Ingham, Derek B. (Autor:in) / Pourkashanian, Mohamed (Autor:in)
International Journal of Greenhouse Gas Control ; 63 ; 184-193
26.05.2017
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch