Rossi, G. E., Winfield, J. M., Mitchell, C. J., Meyer, N., Jones, D. H., Carr, R. H. and Lennon, D. (2020) Phosgene formation via carbon monoxide and dichlorine reaction over an activated carbon catalyst: reaction kinetics and mass balance relationships. Applied Catalysis A: General, 602, 117688. (doi: 10.1016/j.apcata.2020.117688)
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Abstract
The reaction of carbon monoxide and dichlorine over an activated carbon catalyst to produce phosgene is examined using a previously described micro-reactor arrangement. An activation energy of 34.1 kJ mol−1 is determined. The reaction profile at 323 K as a function of time-on-stream establishes steady-state operation to be achieved rapidly, with no deactivation evident within a reaction time of 300 min.. Phosgene production seemingly exhibits 100 % selectivity. However, mass balance measurements indicate a small degree of carbon and chlorine retention by the catalyst that is not directly coupled to the formation of gaseous phosgene. The molecular form of the retained moieties is unknown but, nonetheless, their presence reduces the atom economy of the process and, correspondingly, attenuates total phosgene selectivity. The order of reaction with respect CO, Cl2 and COCl2 is, respectively, 1, 0.5 and 0; leading to the determination of the rate law for phosgene production over this catalyst.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Winfield, Professor John and Rossi, Giovanni and Lennon, Professor David |
Authors: | Rossi, G. E., Winfield, J. M., Mitchell, C. J., Meyer, N., Jones, D. H., Carr, R. H., and Lennon, D. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Applied Catalysis A: General |
Publisher: | Elsevier |
ISSN: | 0926-860X |
ISSN (Online): | 1873-3875 |
Published Online: | 06 June 2020 |
Copyright Holders: | Copyright © 2020 The Author(s). |
First Published: | First published in Applied Catalysis A: General 602:117688 |
Publisher Policy: | Reproduced under a Creative Commons licence |
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