CO2- and CO-Conversion to Methanol over promoted CuO/ZnO-based infiltration composite catalyst spheres — Characterization, experimentals and comparative reaction kinetics
Fritsch C, Serwe A, Jovanovic S, Ranganathan H, Hans M, Hutzler A, Dornseiffer J, Kornienko N (2026)
Publication Type: Journal article
Publication year: 2026
Journal
Book Volume: 713
Article Number: 120675
DOI: 10.1016/j.apcata.2025.120675
Abstract
Zirconia (ZrO2)-, Ceria (CeO2)-, and Calcium (CaO) -promoted Copper oxide (CuO) Zinc oxide (ZnO) catalysts supported on γ[jls-end-space/]-alumina spheres are synthesized via incipient wetness impregnation (IWI) and characterized using transmission electron microscopy (TEM), Raman spectroscopy, X-ray Photoelectron Spectroscopy (XPS), and CO2/H2-TPD. Catalytic performance is evaluated for carbon oxide hydrogenation to methanol (MeOH) in mixed carbon oxide synthesis gas, examining both CO and CO2-conversion pathways and MeOH space–time yields (STY). Temperature- and pressure-dependent reaction equilibria for MeOH formation from CO and CO2, as well as the reverse water-gas shift reaction (RWGS) are investigated to demonstrate promoter effects on surface reaction mechanisms and conversion efficiency towards MeOH and H2O. Reaction kinetics are optimized using a previously formulated re-parametrized two-site Langmuir–Hinshelwood–Hougen–Watson (LHHW) model for each catalyst system, providing comparative kinetic parameters for the binary, ternary, quaternary, and quinary catalyst formulations. The kinetic models demonstrate good numerical agreement with experimental data for both the promoted catalysts. Although CO-rich streams produce the highest MeOH production rates in all samples, the promotion through ZrO2 and CeO2 significantly improved both CO and CO2 conversion (XC) compared to the binary CuO/ZnO catalyst formulation.
Authors with CRIS profile
Involved external institutions
Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen
Germany (DE)
Forschungszentrum Jülich / Research Centre Jülich (FZJ)
Germany (DE)
Rheinische Friedrich-Wilhelms-Universität Bonn
Germany (DE)
Germany (DE)
Forschungszentrum Jülich / Research Centre Jülich (FZJ)
Germany (DE)
Rheinische Friedrich-Wilhelms-Universität Bonn
Germany (DE)
How to cite
APA:
Fritsch, C., Serwe, A., Jovanovic, S., Ranganathan, H., Hans, M., Hutzler, A.,... Kornienko, N. (2026). CO2- and CO-Conversion to Methanol over promoted CuO/ZnO-based infiltration composite catalyst spheres — Characterization, experimentals and comparative reaction kinetics. Applied Catalysis A-General, 713. https://doi.org/10.1016/j.apcata.2025.120675
MLA:
Fritsch, Carl, et al. "CO2- and CO-Conversion to Methanol over promoted CuO/ZnO-based infiltration composite catalyst spheres — Characterization, experimentals and comparative reaction kinetics." Applied Catalysis A-General 713 (2026).
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