Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon Capture

The study concerns promising coal-fired power plants that can gain an advantage over traditional options in the context of decarbonization. The calculations show that combined-cycle plants with integrated coal gasification and carbon dioxide recirculation may have better technical and economic chara...

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Main Author: Igor Donskoy
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Clean Technologies
Subjects:
Online Access:https://www.mdpi.com/2571-8797/5/1/13
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author Igor Donskoy
author_facet Igor Donskoy
author_sort Igor Donskoy
collection DOAJ
description The study concerns promising coal-fired power plants that can gain an advantage over traditional options in the context of decarbonization. The calculations show that combined-cycle plants with integrated coal gasification and carbon dioxide recirculation may have better technical and economic characteristics compared to existing gasification processes (one- and two-stage). The recirculation of carbon dioxide improves the efficiency of the gasification process (the combustible gases yield and the fuel carbon conversion degree) and reduces the energy costs of the flue gas cleaning and carbon capture unit, thereby improving the economic performance of the plant. The estimates show that the decrease in the efficiency of electricity production associated with the removal of carbon dioxide is approximately 8% for the recirculation of combustion products and 15–16% for traditional processes, and the increase in the cost of electricity is 20–25% versus 35–40%, respectively.
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spelling doaj.art-a26e610f311f4867b1c71f5dde58c8bc2023-11-17T10:23:54ZengMDPI AGClean Technologies2571-87972023-02-015121523210.3390/cleantechnol5010013Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon CaptureIgor Donskoy0Melentiev Energy Systems Institute, 130 Lermontova St., Irkutsk 664033, RussiaThe study concerns promising coal-fired power plants that can gain an advantage over traditional options in the context of decarbonization. The calculations show that combined-cycle plants with integrated coal gasification and carbon dioxide recirculation may have better technical and economic characteristics compared to existing gasification processes (one- and two-stage). The recirculation of carbon dioxide improves the efficiency of the gasification process (the combustible gases yield and the fuel carbon conversion degree) and reduces the energy costs of the flue gas cleaning and carbon capture unit, thereby improving the economic performance of the plant. The estimates show that the decrease in the efficiency of electricity production associated with the removal of carbon dioxide is approximately 8% for the recirculation of combustion products and 15–16% for traditional processes, and the increase in the cost of electricity is 20–25% versus 35–40%, respectively.https://www.mdpi.com/2571-8797/5/1/13gasificationIGCCcarbon dioxide captureoxyfuelenergy cost
spellingShingle Igor Donskoy
Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon Capture
Clean Technologies
gasification
IGCC
carbon dioxide capture
oxyfuel
energy cost
title Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon Capture
title_full Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon Capture
title_fullStr Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon Capture
title_full_unstemmed Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon Capture
title_short Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon Capture
title_sort techno economic efficiency estimation of promising integrated oxyfuel gasification combined cycle power plants with carbon capture
topic gasification
IGCC
carbon dioxide capture
oxyfuel
energy cost
url https://www.mdpi.com/2571-8797/5/1/13
work_keys_str_mv AT igordonskoy technoeconomicefficiencyestimationofpromisingintegratedoxyfuelgasificationcombinedcyclepowerplantswithcarboncapture