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Mechanistic modeling of the wall reactions in the pyrolysis of pentachloroethane
Author(s) -
Huybrechts G.,
Daniels Y.,
Van Assche G.,
Van Mele B.
Publication year - 2002
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.10054
Subject(s) - chemistry , pyrolytic carbon , pyrolysis , torr , adsorption , reaction rate constant , quartz , thermal , kinetics , thermodynamics , organic chemistry , paleontology , physics , quantum mechanics , biology
The thermal dehydrochlorination C 2 HCl 5 → C 2 Cl 4 + HCl has been studied in a static system between 565 and 645 K at pressures ranging from 5 to 21 torr. The course of the reaction was followed by measuring the pressure rise in the conditioned quartz reaction vessel and by analyzing the products by gas chromatography. The observed experimental results and data from the literature for flow systems can be explained quantitatively in terms of a radical reaction model involving heterogeneous chain initiation and termination steps. The rate constants have been deduced for reactions of Cl, Cl 2 , and C 2 HCl 5 over reactor walls covered with a pyrolytic carbon film and for reactions of adsorbed Cl atoms. © 2002 Wiley Periodicals, Inc. Int J Chem Kinet 34: 322–330, 2002