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Synthetic CaO-based sorbent for high-temperature CO2 capture in sorption-enhanced hydrogen production

Pecharaumporn, Piya and Wongsakulphasatch, Suwimol and Glinrun, Thongchai and Maneedaeng, Atthaphon and Zulkafli, Hassan and Assabumrungrat, Suttichai (2019) Synthetic CaO-based sorbent for high-temperature CO2 capture in sorption-enhanced hydrogen production. International Journal of Hydrogen Energy, 44 (37). pp. 20663-20677. ISSN 0360-3199

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Abstract

Calcium precursor and surfactant addition on properties of synthetic alumina-containing CaO-based for CO2 capture and for sorption-enhanced steam methane reforming process (SE-SMR) were investigated. Results showed that the sorbent derived from calcium D-gluconic acid (CG-AN) offered CO2 sorption capacity of 0.38 g CO2/g sorbent, which is greater than 0.17 g CO2/g sorbent of the sorbent derived from calcium nitrate (CN-AN). Addition of CTAB surfactant during synthesis was found to enhance CO2 sorption capacity for CG-AN but not for CN-AN sorbents. Stability tests of the modified sorbents for 10 cycles showed that CG-AN-CTAB provided higher CO2 sorption capacity than CN-AN-CTAB for each corresponding cycle. Incorporation of CG-AN with Ni catalyst (Ni-CG-AN) using wet-mixing technique offered the longest pre-breakthrough period of 60 min for average maximum H2 purity of 88% at 600 °C and a steam/methane molar ratio of 3.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Alumina-containing CaO-based sorbent; High-temperature CO2 capture; Sorption-enhanced steam methane reforming; H2 production
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 30 Jun 2021 14:29
Last Modified: 30 Jun 2021 14:29
URI: http://umpir.ump.edu.my/id/eprint/30310
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