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Hydrogen production by the catalytic steam reforming of methanol: Part 2: Kinetics of methanol decomposition using girdler G66B catalyst
Author(s) -
Amphlett J. C.,
Evans M. J.,
Mann R. F.,
Weir R. D.
Publication year - 1985
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450630412
Subject(s) - methanol , catalysis , activation energy , arrhenius equation , chemistry , steam reforming , decomposition , hydrogen , reaction rate constant , hydrogen production , kinetics , reaction rate , inorganic chemistry , organic chemistry , physics , quantum mechanics
The rate of catalytic decomposition of methanol in the presence of steam has been studied using a commercial Girdler G66B CuO‐ZnO low temperature shift catalyst from 150 to 250°C at atmospheric pressure. The mole ratio of steam to methanol was varied from 0 to 1.5, and the feed rates covered the range from 300 to 1400 kg s/mol. The data were successfully correlated using a simple reaction network involving CH 3 OH, H 2 O, CO and H 2 . A conventional reversible reaction rate equation was used which included a resistance term for site blockage by a CO surface complex. The methanol decomposition rate constants showed satisfactory Arrhenius behaviour with an activation energy of about 96 kJ/mole.