Cobalt-based catalysts for hydrogen production by thermochemical valorization of glycerol: a review

Mahadi B., Bahari and Che Rozid, Mamat and Aishah, Abdul Jalil and Siang, Tan Ji and Nurul Sahida, Hassan and Nur Farahain, Khusnun and Walid, Nabgan and Nurul Asmawati, Roslan and Sumaiya Zainal, Zainal Abidin and Herma Dina, Setiabudi and Vo, Dai Viet N. (2022) Cobalt-based catalysts for hydrogen production by thermochemical valorization of glycerol: a review. Environmental Chemistry Letters, 20 (4). pp. 2361-2384. ISSN 1610-3653. (Published)

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Abstract

Rising energy needs and the exhaustion of fossil fuels are calling for renewable fuels such as dihydrogen (H2), commonly named 'hydrogen.' Biomass treatment produces glycerol, which can be further used to generate dihydrogen or syngas. Here, actual challenges comprise the design of efficient and economically viable catalysts for attaining high hydrogen yield and minimizing coke deposition. Here, we review glycerol valorization routes for hydrogen or syngas generation, such as pyrolysis, steam reforming, aqueous phase, dry, supercritical water, partial oxidation, and autothermal reforming. We focus on cobalt-based catalysts due to their high availability, low cost, thermal stability, and coke resistance. The efficiency of cobalt-based catalysts can be improved by modifying textural properties, particle size and distribution, the strength of metal–support interaction, surface acidity and basicity, oxygen mobility, and reducibility. Such improvements have led to 100% glycerol conversion, 90% dihydrogen yield, and coke deposition of about 0.05%.

Item Type:	Article
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Cobalt catalyst; Deactivation; Glycerol; Hydrogen; Syngas; Valorization
Subjects:	Q Science > QD Chemistry T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology
Faculty/Division:	Institute of Postgraduate Studies College of Engineering Faculty of Chemical and Process Engineering Technology
Depositing User:	Mr Muhamad Firdaus Janih@Jaini
Date Deposited:	14 Nov 2023 03:10
Last Modified:	14 Nov 2023 03:10
URI:	http://umpir.ump.edu.my/id/eprint/39041
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