Sustainability Analysis of Phase-Change Solvents for Post-Combustion CO<sub>2</sub> Capture

Phase-change solvents is a solution to the energy penalty problem of post-combustion CO2 capture. While the improved thermodynamic performance of processes using phase-change solvents is previously demonstrated, there is no research done on the environmental and health aspects of such processes. The...

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Main Authors: Gulnara Shavalieva, Stavros Papadokonstantakis, Panagiotis Kazepidis, Athanasios I. Papadopoulos, Panos Seferlis
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2019-10-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/10626
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author Gulnara Shavalieva
Stavros Papadokonstantakis
Panagiotis Kazepidis
Athanasios I. Papadopoulos
Panos Seferlis
author_facet Gulnara Shavalieva
Stavros Papadokonstantakis
Panagiotis Kazepidis
Athanasios I. Papadopoulos
Panos Seferlis
author_sort Gulnara Shavalieva
collection DOAJ
description Phase-change solvents is a solution to the energy penalty problem of post-combustion CO2 capture. While the improved thermodynamic performance of processes using phase-change solvents is previously demonstrated, there is no research done on the environmental and health aspects of such processes. The purpose of this study is to bridge this gap with the help of combined life cycle and safety, health and environment hazard assessment. In terms of life cycle analysis, steam for the reboiler, CO2 compression for transport and electricity consumption by the flue gas blower are the main contributors to the impact, however, in comparison with the conventional solvents, phase-change solvents will require additional electricity and reclaimer steam input due to phase-separation and potential increase of degradation compounds, the overall energy requirement is, however, smaller. The assessment indicated that phase-change solvent systems may experience additional problems of accumulation of harmful solvent degradation products due to the design of the process. The study highlights that in comparison with the conventional systems, phase-change solvent process might require additional safety equipment, but the overall environmental and health impact of the system is expected to be lower.
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spelling doaj.art-c457afbfbfb0434a9fe70cb3433fc4462022-12-21T20:17:58ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162019-10-017610.3303/CET1976175Sustainability Analysis of Phase-Change Solvents for Post-Combustion CO<sub>2</sub> CaptureGulnara ShavalievaStavros PapadokonstantakisPanagiotis KazepidisAthanasios I. PapadopoulosPanos SeferlisPhase-change solvents is a solution to the energy penalty problem of post-combustion CO2 capture. While the improved thermodynamic performance of processes using phase-change solvents is previously demonstrated, there is no research done on the environmental and health aspects of such processes. The purpose of this study is to bridge this gap with the help of combined life cycle and safety, health and environment hazard assessment. In terms of life cycle analysis, steam for the reboiler, CO2 compression for transport and electricity consumption by the flue gas blower are the main contributors to the impact, however, in comparison with the conventional solvents, phase-change solvents will require additional electricity and reclaimer steam input due to phase-separation and potential increase of degradation compounds, the overall energy requirement is, however, smaller. The assessment indicated that phase-change solvent systems may experience additional problems of accumulation of harmful solvent degradation products due to the design of the process. The study highlights that in comparison with the conventional systems, phase-change solvent process might require additional safety equipment, but the overall environmental and health impact of the system is expected to be lower.https://www.cetjournal.it/index.php/cet/article/view/10626
spellingShingle Gulnara Shavalieva
Stavros Papadokonstantakis
Panagiotis Kazepidis
Athanasios I. Papadopoulos
Panos Seferlis
Sustainability Analysis of Phase-Change Solvents for Post-Combustion CO<sub>2</sub> Capture
Chemical Engineering Transactions
title Sustainability Analysis of Phase-Change Solvents for Post-Combustion CO<sub>2</sub> Capture
title_full Sustainability Analysis of Phase-Change Solvents for Post-Combustion CO<sub>2</sub> Capture
title_fullStr Sustainability Analysis of Phase-Change Solvents for Post-Combustion CO<sub>2</sub> Capture
title_full_unstemmed Sustainability Analysis of Phase-Change Solvents for Post-Combustion CO<sub>2</sub> Capture
title_short Sustainability Analysis of Phase-Change Solvents for Post-Combustion CO<sub>2</sub> Capture
title_sort sustainability analysis of phase change solvents for post combustion co sub 2 sub capture
url https://www.cetjournal.it/index.php/cet/article/view/10626
work_keys_str_mv AT gulnarashavalieva sustainabilityanalysisofphasechangesolventsforpostcombustioncosub2subcapture
AT stavrospapadokonstantakis sustainabilityanalysisofphasechangesolventsforpostcombustioncosub2subcapture
AT panagiotiskazepidis sustainabilityanalysisofphasechangesolventsforpostcombustioncosub2subcapture
AT athanasiosipapadopoulos sustainabilityanalysisofphasechangesolventsforpostcombustioncosub2subcapture
AT panosseferlis sustainabilityanalysisofphasechangesolventsforpostcombustioncosub2subcapture