Phosgene formation via carbon monoxide and dichlorine reaction over an activated carbon catalyst: reaction testing arrangements

Rossi, G. E., Winfield, J. M., Mitchell, C. J., van der Borden, W., van der Velde, K., Carr, R. H. and Lennon, D. (2020) Phosgene formation via carbon monoxide and dichlorine reaction over an activated carbon catalyst: reaction testing arrangements. Applied Catalysis A: General, 594, 117467. (doi: 10.1016/j.apcata.2020.117467)

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Abstract

An apparatus is described to investigate the synthesis of phosgene from the reaction of carbon monoxide and dichlorine over an activated carbon catalyst. Infrared spectroscopy and UV-visible absorption spectroscopy are used to identify and quantify reagents and products. The reaction is operated with an excess of CO in order to enable complete chlorine conversion at elevated temperatures. The reaction profile is examined over the temperature range of 300-445 K, with a phosgene selectivity of 100% observed at all temperatures. An isosbestic point in the UV-visible spectrum is observed at 272 nm, indicating that the dichlorine and the phosgene are in equilibrium. Examination of the phosgene formation rate as a function of space time and catalyst size fraction at 323 K establishes that, under the described conditions, the reaction is operating under chemical control in the absence of mass transfer restrictions.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Winfield, Professor John and Rossi, Giovanni and Lennon, Professor David
Creator Roles:
Rossi, G. E.Investigation, Validation, Writing – review and editing, Data curation, Visualization
Winfield, J. M.Methodology, Writing – review and editing
Lennon, D.Conceptualization, Methodology, Investigation, Writing – original draft, Supervision, Project administration
Authors: Rossi, G. E., Winfield, J. M., Mitchell, C. J., van der Borden, W., van der Velde, K., 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:13 February 2020
Copyright Holders:Copyright © 2020 The Authors
First Published:First published in Applied Catalysis A: General 594: 117467
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
190235Nanostructured Substrates for Cell and Tissue EngineeringDavid CummingEngineering and Physical Sciences Research Council (EPSRC)KTA EP/H500138/1ENG - Electronics & Nanoscale Engineering