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Surface Reaction Kinetics of the Oxidation and Reforming of CH 4 over Rh/Al 2 O 3 Catalysts
Author(s) -
Karakaya Canan,
Maier Lubow,
Deutschmann Olaf
Publication year - 2016
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.20980
Subject(s) - chemistry , catalysis , steam reforming , kinetics , methane , kinetic energy , chemical kinetics , partial oxidation , thermodynamics , water gas shift reaction , syngas , reaction mechanism , redox , methane reformer , rhodium , inorganic chemistry , hydrogen production , organic chemistry , physics , quantum mechanics
An 48‐step sur face reaction mechanism with thermodynamic consistent kinetic data is presented for the catalytic conversion of the gaseous chemical system H 2 /O 2 /H 2 O/CO/CO 2 /CH 4 over Rh/Al 2 O 3 catalysts. Total and partial oxidation as well as steam reforming and dry reforming of methane over Rh catalysts is studied experimentally and numerically at varying temperature and composition. The results are used to extend the kinetic schemes we developed for H 2 oxidation, CO oxidation kinetics, and the water‐gas‐shift reactions in former studies. Aside from the experiments in a stagnation‐flow reactor presented here, we modeled a number of experiments from the literature to test the newly established kinetic scheme.