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Kinetic study and modeling of the hetero-homogeneous pyrolysis and oxidation of isobutane around 800 K. Part II. Pyrolysis in pyrex reactors packed with platinum foils or PbO-treated pyrex rods

✍ Scribed by R. Zils; R. Martin; D. Perrin

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 231 KB
Volume: 30
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(1998)30:6<439::aid-kin6>3.0.co;2-t

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✦ Synopsis

Isobutane pyrolysis has been studied at initial pressures and 20-200 torr in a packed reactor treated with PbO and in a reactor packed with platinum foils. 773-793 K, These packings strongly inhibit product formation and this effect is explained by the occurrence of the heterogeneous termination step: walls H• 9 9 : product (w)

at the reactor walls. The reaction has been modeled in the temperature and pressure range on the basis of a kinetic scheme which has been proposed for the homogeneous reaction and step (w) with the following values of k : w 9000 8 Ϫ1 (k ) ϭ 3.7 10 exp Ϫ s w PbO

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