Tran, Ngoc Thang and P. Senthil, Kumar and Le, Quyet Van and Cuong, Nguyen Van and Phuong, Pham T. T. and A. A., Jalil and Sharma, Gaurav and Kumar, Amit and Sharma, Ajit and Ayodele, Bamidele Victor and Sumaiya, Zainal Abidin and Vo, Dai‑Viet N (2021) CO2 reforming of CH4 on mesoporous alumina‑supported cobalt catalyst: optimization of lanthana promoter loading. Topics in Catalysis. pp. 1-11. (Published)
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Abstract
The impact of La2O3 promoter loading on alumina-supported cobalt catalysts was investigated in terms of physicochemical properties and catalytic performance for CO2 reforming of methane (CRM) at stoichiometric CH4/CO2 ratio and 1023 K. Both Co3O4 (with crystal size: 5.2–8.4 nm) and La2O3 nanoparticles were finely dispersed on support surface. The promotional La2O3 effect could noticeably increase CH4 and CO2 conversions to 29.3% and 17.3%, correspondingly due to improved basic site concentration and decreasing crystallite size of active metal in association with promoter addition. 5%La loading was an optimal promoter content for reactant conversions as well as yield of H2 and CO. 5%La-10%Co/Al2O3 also exhibited the highest resistance to carbon deposition owing to the basic nature, redox feature and oxygen vacancy of La2O3 dopant. Notably, the H2/CO ratio obtained within 0.84–0.98 is preferable for Fischer-Tropsch reaction in downstream to yield liquid hydrocarbon fuels.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Mesoporous alumina; CO2 reforming; cobalt; hydrogen; syngas; carbon dioxide |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Chemical and Process Engineering Technology Faculty of Civil Engineering Technology |
| Depositing User: | Miss. Ratna Wilis Haryati Mustapa |
| Date Deposited: | 15 Jul 2021 07:54 |
| Last Modified: | 15 Jul 2021 07:54 |
| URI: | http://umpir.ump.edu.my/id/eprint/31624 |
| Download Statistic: | View Download Statistics |
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