Review on the modifications of natural and industrial waste CaO based sorbent of calcium looping with enhanced CO2 capture capacity

Afandi, Nurfanizan and Satgunam, M. and Mahalingam, Savisha and Manap, Abreeza and Nagi, Farrukh and Liu, Wen and Johan, Mohd Rafie and Turan, Ahmet and Tan, Adrian Wei-Yee and Yunus, Salmi (2024) Review on the modifications of natural and industrial waste CaO based sorbent of calcium looping with enhanced CO2 capture capacity. Heliyon, 10 (5). e27119. ISSN 2405-8440, DOI https://doi.org/10.1016/j.heliyon.2024.e27119.

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Official URL: https://doi.org/10.1016/j.heliyon.2024.e27119

Abstract

The calcium looping cycle (CaL) possesses outstanding CO2 capture capacity for future carboncapturing technologies that utilise CaO sorbents to capture the CO2 in a looping cycle. However, sorbent degradation and the presence of inert materials stabilise the sorbent, thereby reducing the CO2 capture capacity. Consequently, the CaO sorbent that has degraded must be replenished, increasing the operational cost for industrial use. CaO sorbents have been modified to enhance their CO2 capture capacity and stability. However, various CaO sorbents, including limestone, dolomite, biogenesis calcium waste and industrial waste, exhibit distinct behaviour in response to these modifications. Thus, this work comprehensively reviews the CO2 capture capacity of sorbent improvement based on various CaO sorbents. Furthermore, this study provides an understanding of the effects of CO2 capture capacity based on the properties of the CaO sorbent. The properties of various CaO sorbents, such as surface area, pore volume, particle size and morphology, are influential in exhibiting high CO2 capture capacity. This review provides insights into the future development of CaL technology, particularly for carbon-capturing technologies that focus on the modifications of CaO sorbents and the properties that affect the CO2 capture capacity.

Item Type: Article
Funders: Ministry of Higher Education, Malaysia, through the Fundamental of research Grant (FRGS) (FRGS/1/2023/STG04/UNITEN/03/1), Ministry of Higher Education, Malaysia, through Higher Institution Centre of Excellence (2022002HICOE)
Uncontrolled Keywords: Energy; Calcium looping cycle (CaL); Natural sorbent; Industrial waste sorbent; HighCO2 capture capacity; High stability; Low cost
Subjects: Q Science > Q Science (General)
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 28 Oct 2024 07:59
Last Modified: 28 Oct 2024 07:59
URI: http://eprints.um.edu.my/id/eprint/45542

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