RT Journal Article
T1 Kinetic Study of the Hydrodechlorination of Chloromethanes with Activated-Carbon-Supported Metallic Catalysts
A1 Álvarez-Montero, M. Ariadna
A1 Martín Martínez, María
A1 Gómez-Sainero, Luisa M.
A1 Arevalo-Bastante, Alejandra
A1 Bedia, Jorge
A1 Rodriguez, Juan J.
AB The kinetics of the hydrodechlorination (HDC) of dichloromethane (DCM) and chloroform (TCM) with Pd, Pt, Rh, and Ru on activated carbon catalysts has been studied at temperatures between 100 and 250 °C. Different kinetic models have been checked, namely, pseudo-first-order and Langmuir-Hinshelwood-Hougen-Watson (LHHW) with adsorption, chemical reaction, or desorption control. The HDC of DCM and TCM with the Pd and Pt catalysts was well-described by the LHHW model with reactant adsorption as the rate-controlling step. However, with Rh and Ru catalysts, chemical reaction and desorption of the reaction products appear to be the rate-controlling steps in the HDC of DCM and TCM, respectively. In this last case, different sets of complex reactions seem to occur on the surface of the catalyst depending on the temperature, preventing determination of a confident value of the activation energy, because of the formation of oligomeric coke-like deposits and the subsequent severe deactivation of these catalysts. The corresponding kinetic parameters for the proposed models have been calculated
PB American Chemical Society
SN 0888-5885
SN 1520-5045
YR 2015
FD 2015-02-10
LK https://hdl.handle.net/20.500.14352/107213
UL https://hdl.handle.net/20.500.14352/107213
LA eng
NO M. Ariadna Álvarez-Montero, Maria Martin-Martinez, Luisa M. Gómez-Sainero, Alejandra Arevalo-Bastante, Jorge Bedia, and Juan J. Rodriguez Industrial & Engineering Chemistry Research 2015 54 (7), 2023-2029 DOI: 10.1021/ie5042484
DS Docta Complutense
RD 4 abr 2025