From CO or CO2?
Space-resolved insights into high-pressure CO2 hydrogenation to methanol over Cu/ZnO/Al2O3
Rohit Gaikwad (Institute of Chemical Research of Catalonia (ICIQ))
Helena Reymond (ETH Zürich)
Nat Phongprueksathat (Institute of Chemical Research of Catalonia (ICIQ), TU Delft - ChemE/Catalysis Engineering)
Philipp Rudolf Von Rohr (ETH Zürich)
Atsushi Urakawa (TU Delft - ChemE/Catalysis Engineering, Japan Science and Technology Agency, Institute of Chemical Research of Catalonia (ICIQ))
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Abstract
The reaction pathway of high-pressure CO2 hydrogenation over a Cu/ZnO/Al2O3 catalyst is investigated through the gradients of reactants/products concentration and catalyst temperature within the catalytic reactor. This study reveals that methanol is formed through direct CO2 hydrogenation at low temperature, while above 260 °C methanol formation is mediated via CO which is formed by reverse water-gas shift reaction.
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