Integrated calcium looping technologies for enhanced CO2 valorisation—A critical review

The calcium looping (CaL) process stands out as a promising technology for carbon dioxide (CO2) capture, which exhibits two essential phases: carbonation and calcination. CaL process has several advantages over conventional systems such as availability of abundant and low cost CaO sorbents, reduced...

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Main Authors: Priyanka Kumari, Nahla Al Amoodi, Ludovic F. Dumée, Ahmed Al Hajaj
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Carbon Capture Science & Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2772656825000119
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author Priyanka Kumari
Nahla Al Amoodi
Ludovic F. Dumée
Ahmed Al Hajaj
author_facet Priyanka Kumari
Nahla Al Amoodi
Ludovic F. Dumée
Ahmed Al Hajaj
author_sort Priyanka Kumari
collection DOAJ
description The calcium looping (CaL) process stands out as a promising technology for carbon dioxide (CO2) capture, which exhibits two essential phases: carbonation and calcination. CaL process has several advantages over conventional systems such as availability of abundant and low cost CaO sorbents, reduced environmental impact, lower greenhouse emissions and energy requirements. CaL offers easy and innovative schemes to integrate renewable energy such as concentrated solar power, oxy-fuel and chemical looping process and steam dilution to further enhance the overall efficiency of the system. The review first focuses on summarizing the characteristics and operational parameters of these process integrated CaL facilities while highlighting key experimental findings. The examination of innovative sorbent materials utilized within integrated CaL processes has been addressed, emphasizing pathways directed towards enhancing reaction efficacy, energy conservation, and holistic sustainability attained via process integration and intensification. Meanwhile, strategies to overcome the limitation of CaL process in terms of rapid sintering of sorbent particles over time have also been discussed. Further, the approaches for integrating CaL into industrial plants such as power, cement and steel plants have been identified and compared to realize significant reduction of energy penalty compared to conventional system. The impact of multivariate latent variable (LV) modeling on the integrated CaL process has been examined. Based on the review, CaL showed equivalent or better performance in reducing CO2 emissions (global warming potential or climate change impact indicator) in comparison to alternative scenarios.
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spelling doaj-art-ebe8d6921575424caed2cac2d0b9019d2025-08-20T02:57:21ZengElsevierCarbon Capture Science & Technology2772-65682025-03-011410037110.1016/j.ccst.2025.100371Integrated calcium looping technologies for enhanced CO2 valorisation—A critical reviewPriyanka Kumari0Nahla Al Amoodi1Ludovic F. Dumée2Ahmed Al Hajaj3Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Research and Innovation Center on CO2 and Hydrogen (RICH Center), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Corresponding authors.Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Center of Separation and Catalysis (CeCaS), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab EmiratesDepartment of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Research and Innovation Center for Graphene and 2D Materials (RIC2D), Khalifa University of Science and Technology, Arzanah Precinct, Abu Dhabi, United Arab EmiratesDepartment of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Research and Innovation Center on CO2 and Hydrogen (RICH Center), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Corresponding authors.The calcium looping (CaL) process stands out as a promising technology for carbon dioxide (CO2) capture, which exhibits two essential phases: carbonation and calcination. CaL process has several advantages over conventional systems such as availability of abundant and low cost CaO sorbents, reduced environmental impact, lower greenhouse emissions and energy requirements. CaL offers easy and innovative schemes to integrate renewable energy such as concentrated solar power, oxy-fuel and chemical looping process and steam dilution to further enhance the overall efficiency of the system. The review first focuses on summarizing the characteristics and operational parameters of these process integrated CaL facilities while highlighting key experimental findings. The examination of innovative sorbent materials utilized within integrated CaL processes has been addressed, emphasizing pathways directed towards enhancing reaction efficacy, energy conservation, and holistic sustainability attained via process integration and intensification. Meanwhile, strategies to overcome the limitation of CaL process in terms of rapid sintering of sorbent particles over time have also been discussed. Further, the approaches for integrating CaL into industrial plants such as power, cement and steel plants have been identified and compared to realize significant reduction of energy penalty compared to conventional system. The impact of multivariate latent variable (LV) modeling on the integrated CaL process has been examined. Based on the review, CaL showed equivalent or better performance in reducing CO2 emissions (global warming potential or climate change impact indicator) in comparison to alternative scenarios.http://www.sciencedirect.com/science/article/pii/S2772656825000119Calcium loopingCO2 captureEnvironmental impactIntegrated systemLife cycle assessmentMultivariate latent variable
spellingShingle Priyanka Kumari
Nahla Al Amoodi
Ludovic F. Dumée
Ahmed Al Hajaj
Integrated calcium looping technologies for enhanced CO2 valorisation—A critical review
Carbon Capture Science & Technology
Calcium looping
CO2 capture
Environmental impact
Integrated system
Life cycle assessment
Multivariate latent variable
title Integrated calcium looping technologies for enhanced CO2 valorisation—A critical review
title_full Integrated calcium looping technologies for enhanced CO2 valorisation—A critical review
title_fullStr Integrated calcium looping technologies for enhanced CO2 valorisation—A critical review
title_full_unstemmed Integrated calcium looping technologies for enhanced CO2 valorisation—A critical review
title_short Integrated calcium looping technologies for enhanced CO2 valorisation—A critical review
title_sort integrated calcium looping technologies for enhanced co2 valorisation a critical review
topic Calcium looping
CO2 capture
Environmental impact
Integrated system
Life cycle assessment
Multivariate latent variable
url http://www.sciencedirect.com/science/article/pii/S2772656825000119
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AT ahmedalhajaj integratedcalciumloopingtechnologiesforenhancedco2valorisationacriticalreview