Chemistry and Physics Faculty Articles
Title
Catalytic Dechlorination of Gas-Phase Perchloroethylene Under Mixed Redox Conditions
Document Type
Article
Publication Date
2-21-2008
Publication Title
Applied Catalysis B: Environmental
Keywords
PCE destruction, Catalytic dechlorination, Redox conditions, Reduction, Oxidation
ISSN
0926-3373
Volume
79
Issue/No.
1
First Page
43
Last Page
52
Abstract
The validity of a new method to destroy gas-phase perchloroethylene (PCE) is demonstrated at bench scale using a fixed-bed reactor that contains a Pt/Rh catalyst. Hydrogen and oxygen were simultaneously fed to the reactor together with PCE. The conversion efficiencies of PCE were sensitive to H2/O2 ratio and reactor temperature. When the temperature was ≥400 °C and H2/O2 was ≥2.15, PCE conversion efficiency was maintained at ≥90%. No catalyst deactivation was observed for over 2 years, using only mild, convenient regeneration procedures. It is likely that PCE reduction steps precede oxidation reactions and that the importance of oxidation lies in its elimination of intermediates that would otherwise lead to catalyst poisoning. In practice, this catalytic dechlorination method holds potential for low-cost, large-scale field operation.
NSUWorks Citation
Orbay, O., Gao, S., Barbaris, B., Rupp, E., Saez, A. E., Arnold, R., & Betterton, E. (2008). Catalytic Dechlorination of Gas-Phase Perchloroethylene Under Mixed Redox Conditions. Applied Catalysis B: Environmental, 79, (1), 43 - 52. https://doi.org/10.1016/j.apcatb.2007.09.034. Retrieved from https://nsuworks.nova.edu/cnso_chemphys_facarticles/49
DOI
10.1016/j.apcatb.2007.09.034
Comments
©2007 Elsevier B.V. All rights reserved.