Artículo

Graschinsky, C.; Laborde, M.; Amadeo, N.; Le Valant, A.; Bion, N.; Epron, F.; Duprez, D. "Ethanol steam reforming over Rh(1%)MgAl2O4/Al 2O3: A kinetic study" (2010) Industrial and Engineering Chemistry Research. 49(24):12383-12389
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Abstract:

A kinetic study of ethanol steam-reforming reaction on Rh catalyst supported over a spinel structure (MgAl2O4/Al 2O3) was carried out. From the analysis of products distribution, the following four reactions were proposed as the reaction scheme: C2H5OH → CO + CH4 + H2 (ED), C2H5OH + H2O → CO2 + CH 4 + 2H2 (ER), water-gas shift reaction, and methane steam-reforming reaction. When the initial rate method was applied, it was demonstrated that in the rate-determining step (RDS) two active sites of the same type are involved. With use of our experimental results and data obtained from the literature, a sequence of 14 elementary steps were proposed, in agreement with the reaction scheme. Taking into account both the reaction mechanism and the occurrence of two active sites in the RDS, four different kinetic expressions can be formulated in which the RDS is (1) dissociative adsorption of ethanol, (2) dehydrogenation of ethoxide, (3) C-C bond scission, or (4) reaction between two adsorbed species. Finally, when discrimination models were applied, it was verified that the mechanism that fits experimental data is that in which the RDS is the surface reaction. © 2010 American Chemical Society.

Registro:

Documento: Artículo
Título:Ethanol steam reforming over Rh(1%)MgAl2O4/Al 2O3: A kinetic study
Autor:Graschinsky, C.; Laborde, M.; Amadeo, N.; Le Valant, A.; Bion, N.; Epron, F.; Duprez, D.
Filiación:Laboratorio de Procesos Catalíticos, Departamento de Ingeniería Química, Ciudad Universitaria, Buenos Aires 1428, Argentina
Laboratoire de Catalyse en Chimie Organique, UMR6503 CNRS, Université de Poitiers, Av. Recteur Pineau 40, Poitiers 86022, France
Palabras clave:Chemical shift; Ethanol; Kinetic theory; Kinetics; Surface reactions; Water gas shift; Discrimination model; Dissociative adsorption; Ethanol steam reforming; Ethanol steam reforming reactions; Methane steam reforming; Products distributions; Rate-determining step; Water gas shift (WGS) reaction; Steam reforming
Año:2010
Volumen:49
Número:24
Página de inicio:12383
Página de fin:12389
DOI: http://dx.doi.org/10.1021/ie101284k
Título revista:Industrial and Engineering Chemistry Research
Título revista abreviado:Ind. Eng. Chem. Res.
ISSN:08885885
CODEN:IECRE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08885885_v49_n24_p12383_Graschinsky

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Citas:

---------- APA ----------
Graschinsky, C., Laborde, M., Amadeo, N., Le Valant, A., Bion, N., Epron, F. & Duprez, D. (2010) . Ethanol steam reforming over Rh(1%)MgAl2O4/Al 2O3: A kinetic study. Industrial and Engineering Chemistry Research, 49(24), 12383-12389.
http://dx.doi.org/10.1021/ie101284k
---------- CHICAGO ----------
Graschinsky, C., Laborde, M., Amadeo, N., Le Valant, A., Bion, N., Epron, F., et al. "Ethanol steam reforming over Rh(1%)MgAl2O4/Al 2O3: A kinetic study" . Industrial and Engineering Chemistry Research 49, no. 24 (2010) : 12383-12389.
http://dx.doi.org/10.1021/ie101284k
---------- MLA ----------
Graschinsky, C., Laborde, M., Amadeo, N., Le Valant, A., Bion, N., Epron, F., et al. "Ethanol steam reforming over Rh(1%)MgAl2O4/Al 2O3: A kinetic study" . Industrial and Engineering Chemistry Research, vol. 49, no. 24, 2010, pp. 12383-12389.
http://dx.doi.org/10.1021/ie101284k
---------- VANCOUVER ----------
Graschinsky, C., Laborde, M., Amadeo, N., Le Valant, A., Bion, N., Epron, F., et al. Ethanol steam reforming over Rh(1%)MgAl2O4/Al 2O3: A kinetic study. Ind. Eng. Chem. Res. 2010;49(24):12383-12389.
http://dx.doi.org/10.1021/ie101284k