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Kinetic Study of the Water‐Gas Shift Reaction at Ultralow Temperature over a Ru‐Based Supported Ionic Liquid Phase Catalyst
Author(s) -
Fischer Ferdinand,
Jess Andreas
Publication year - 2022
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.202200052
Subject(s) - ionic liquid , catalysis , water gas shift reaction , kinetic energy , chemistry , thermodynamics , kinetics , phase (matter) , ionic bonding , work (physics) , water gas , ruthenium , chemical engineering , chemical kinetics , inorganic chemistry , ion , syngas , organic chemistry , physics , quantum mechanics , engineering
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.