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The role of water in promoting the oxidative dehydrogenation of ethane
Author(s) -
Lunsford Jack H.,
Morales Edrick,
Dissanayake Dhammike,
Shi Chunlei
Publication year - 1994
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.550260906
Subject(s) - chemistry , dehydrogenation , decomposition , radical , tetrafluoride , vapour pressure of water , medicinal chemistry , oxidative phosphorylation , atmospheric pressure , kinetic energy , photochemistry , organic chemistry , inorganic chemistry , water vapor , catalysis , analytical chemistry (journal) , oceanography , physics , quantum mechanics , geology , biochemistry
The addition of water vapor has a strong positive effect on the rate of ethane oxidation at 575°C. This effect is attributed to the role of H 2 O as a third body in the decomposition of H 2 O 2 to OH radicals. Carbon tetrafluoride likewise enhances the rate of ethane conversion, although not to the extent realized with H 2 O. A kinetic model, based on known elementary reactions, adequately accounts for the conversions and selectivities observed as a function of H 2 O pressure, temperature, contact time, and O 2 pressure. © 1994 John Wiley & Sons, Inc.