Catalytic performance of calcium oxide-modified copper- Zinc-alumina catalysts in methanol synthesis from CO2 hydrogenation
AGNES Ng Xin Hui, Syed Muhammad WAJAHAT UL HASNAIN, Ahmad Salam FAROOQI, Bawadi ABDULLAH
Abstract. Proposed as a carbon utilization method, the catalytic hydrogenation with carbon dioxide (CO2) as feedstock to produce methanol is a viable approach for utilizing excess CO2 and countering climate change. The current work aims to enhance methanol production from CO2 hydrogenation over a CaO-promoted Cu/ZnO-based catalyst supported on Al2O3. The catalysts, prepared via impregnation method with 10 wt.% active metal loading and 1.0 wt% CaO promoter, were analyzed for physicochemical properties using N2 physical adsorption-desorption and XRD. It was found that the addition of a CaO promoter improved the textural properties of the catalyst, where a larger BET surface area (214.9 m2/g) and smaller crystallite size (7.76 nm) were obtained. The 1.0 wt% CaO-promoted catalyst showed the highest CO2 conversion (19.14%) and methanol yield (4.66%) due to its excellent textural properties and enhanced basicity.
Keywords
Catalyst Development, Alumina-Based Catalysts, Methanol Production, CO2 Hydrogenation
Published online 4/25/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: AGNES Ng Xin Hui, Syed Muhammad WAJAHAT UL HASNAIN, Ahmad Salam FAROOQI, Bawadi ABDULLAH, Catalytic performance of calcium oxide-modified copper- Zinc-alumina catalysts in methanol synthesis from CO2 hydrogenation, Materials Research Proceedings, Vol. 53, pp 215-222, 2025
DOI: https://doi.org/10.21741/9781644903575-21
The article was published as article 21 of the book Decarbonization Technology
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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