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3572889 
Journal Article 
Kinetic study of the gas-phase hydrogenation of aromatic and aliphatic organochlorinated compounds using a Pd/Al2O3 catalyst 
Lopez, E; Ordonez, S; Sastre, H; Diez, FV 
2003 
Yes 
Journal of Hazardous Materials
ISSN: 0304-3894
EISSN: 1873-3336 
ELSEVIER 
AMSTERDAM 
Journal of Hazardous Materials 
97 
1-3 
281-294 
English 
12573844 
WOS:000181089500020 
The hydrodechlorination of dichloromethane (DCM), tetrachloroethylene (TTCE), chlorobenzene (CBZ) and 1,2-dichlorobenzene (DCBZ), all of them alone and in mixtures, over a commercial Pd/Al2O3 catalyst in a continuous packed-bed reactor was studied in the present work. Results indicate that the reaction kinetics for the single compounds are pseudo-first order kinetics. The reactivity of the compounds studied is very different. So, whereas aromatic compounds and tetrachloroethylene can be fully converted at the operation conditions reported in this work, dichloromethane conversions are lower than 30% in all the cases. The hydrodechlorination of mixtures of organochlorinated compounds shows important inhibition effects, these effects increase as the number of chlorine atoms in the molecule increase. Reaction kinetics for the hydrogenation of mixtures can be represented by a Langmuir-Hinshelwood model. (C) 2002 Elsevier Science B.V. All rights reserved. 
dichloromethane; tetrachloroethylene; chlorobenzene; 1,2-dichlorobenzene; palladium/alumina catalyst; catalytic hydrodechlorination; inhibition effects; Langmuir-Hinshelwood model