 Capture level design for a natural gas combined cycle with post-combustion CO2 capture using novel configurationsPablo R. Díaz-Herrera, Agustín M. Alcaraz-Calderón, Maria Ortencia González-Díaz and Abigail González-Díaz Energy, 2020, vol. 193, issue C Abstract: This paper aims to estimate capture level design of a natural gas combined cycle (NGCC) with CO2 capture by considering the electricity output penalty (EOP), levelised cost of electricity (LCOE), cost of CO2 avoided, optimum size of the equipment, and two novel configurations e.g. exhaust gas recirculation (EGR) and sequential gas turbine combustion (SGTC), all of these parameters together. SGTC configuration represents the highest LCOE at different capture rates, even when the number of absorbers is reduced by half due to the incorporation of the air separation unit (ASU) to supply O2 to the second combustor. Compared with a conventional NGCC, if EGR is incorporated, the design capture level increases from 90% to 92% at lower cost of CO2 avoided, lowering carbon intensity (5.2% reduction) while maintaining the same LCOE, even when the volume of the absorber is reduced by 17% approximately. Increasing the capture level is very important to generate electricity nearly to net zero emissions. Keywords: CO2 capture; Exhaust gas recirculation; Sequential gas combustion; Capture level; Cost CO2 avoided (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:193:y:2020:i:c:s0360544219324648 DOI: 10.1016/j.energy.2019.116769 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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