The Role of Carbonate Formation during CO 2 Hydrogenation over MgO-Supported Catalysts: A Review on Methane and Methanol Synthesis

Kamonrat Suksumrit, Sascha Kleiber and Susanne Lux ()
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Kamonrat Suksumrit: Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25C, 8010 Graz, Austria
Sascha Kleiber: Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25C, 8010 Graz, Austria
Susanne Lux: Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25C, 8010 Graz, Austria

Energies, 2023, vol. 16, issue 7, 1-29

Abstract: Methane and methanol are promising products for CO 2 hydrogenation for carbon capture and utilization concepts. In the search for effective, robust, easy-to-manufacture and stable catalysts, supported metal-based catalysts have proven advantageous. Whereas nickel for methane synthesis and copper for methanol synthesis stand out as efficient and cost-effective catalytically active metals, the best choice of support material is still a matter of ongoing debate. This review discusses the potential of the alkaline earth metal oxide MgO as support material for CO 2 hydrogenation catalysts. Due to its basicity, it gives access to bifunctional catalysts as it shows pronounced CO 2 adsorption capacity. Whereas carbonate formation seems to be beneficial in CO 2 methanation, it may even have an adverse effect in methanol synthesis from CO 2 .

Keywords: CO 2 hydrogenation; carbonate; methanation; methanol synthesis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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