Liquid-Liquid-Gas Triphasic Hydrogenation of Bicarbonate to Formate in a Continuous Flow Tubular Reactor
G. Afreen (TU Delft - ChemE/Catalysis Engineering)
Atul Bansode (TU Delft - ChemE/Catalysis Engineering)
Kazuhito Wada (Nitto Denko Corporation)
M Hirano (Nitto Denko Corporation)
Hirokazu Matsuda (Nitto Denko Corporation)
A. Urakawa (TU Delft - ChemE/Catalysis Engineering)
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Abstract
Multiphasic reaction of bicarbonate hydrogenation to form formate using homogeneous Ru PNP pincer catalyst in a continuous flow tubular reactor is reported. The reaction system consists of three phases. Catalyst is dissolved in toluene while potassium bicarbonate is dissolved in water. The significance of efficient mixing among the organic phase, aqueous phase and gaseous hydrogen to improve hydrogenation reaction by using different inert packing materials is studied by operando visualization and also quantitatively discussed. The bicarbonate conversion of up to 67% is achieved after optimization of important reaction and reactor parameters. The designed reactor setup comprised of effective recycling system that recycles the catalyst with >99% activity.
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