Kinetic Study of the Water‐Gas Shift Reaction at Ultralow Temperature over a Ru‐Based Supported Ionic Liquid Phase Catalyst. Issue 11 (25th August 2022)

• Record Type: Journal Article
• Authors: Fischer, Ferdinand; Jess, Andreas
• Other Names: Beller Matthias guestEditor.; Bender Michael guestEditor.; Bornscheuer Uwe T. guestEditor.; Schunk Stephan guestEditor.
• Is Part Of: Chemie Ingenieur Technik. Volume 94:Issue 11(2022)
• Page Start: 1695
• Page End: 1703
• Publication Date: 2022-08-25
• Subjects: Ru‐based catalysts -- Supported ionic liquid phase -- Water‐gas shift reaction; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.202200052
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: The water‐gas shift reaction is subject to thermodynamic limitation, i.e., CO conversion increases with decreasing temperature. Thus, it is preferential to keep temperatures as low as possible at reasonable kinetic rates. In this work, the performance of a ruthenium‐based supported ionic liquid phase catalyst is shown for the water‐gas shift reaction at ultralow temperature. Furthermore, a model for the intrinsic kinetics of the water‐gas shift reaction using this supported ionic liquid phase catalyst is presented. For this purpose, a formal kinetic power law and a mechanistic general catalytic cycle kinetic approach were applied. Supported ionic liquid phase catalysts with filling levels up to 30 % were prepared. For filling levels < 13 %, internal mass transport limitations do not occur and intrinsic kinetics prevail. Abstract : Supported ionic liquid phase (SILP) water‐gas shift (WGS) catalysts have been developed to achieve CO conversions close to 100 % through ultralow temperature WGS reactions. This work deals with the systematic examination of the filling degree and catalyst loading as well as the modeling of intrinsic kinetics for the WGS‐catalyzing Ru‐based SILP catalysts.