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Abstract:

The kinetics of the water-gas shift reaction (WGSR) over a copper/zinc oxide/alumina catalyst have been studied. The experiments were carried out at 453-503 K and atmospheric pressure. A reactive mixture of similar composition to that employed in the industrial process was used. An integral reactor, an integral procedure and a data treatment valid for near equilibrium conditions were employed. A number of representative models were examined. It was found that only a Langmuir-Hinshelwood model, which considers the adsorption of four species (CO, CO2, H2 and H2O) and the surface reaction as the controlling step, adequately describes the reaction behaviour at the temperature and concentration ranges investigated. Values of adsorption constants and adsorption heats for the four components involved in the WGSR are given. An algorithm for the simulation of an adiabatic fixed-bed reactor was developed with the aim of checking the kinetics expression. Both the industrial and simulated compositions agree. It is proved that the kinetic expression proposed which is in harmony with a Langmuir-Hinshelwood mechanism is useful in designing industrial low-temperature converters. © 1995.

Registro:

Documento: Artículo
Título:Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor
Autor:Amadeo, N.E.; Laborde, M.A.
Filiación:Departamento de Ingenieria Química(FI), PINMATE(FCEyN) Universidad de Buenos Aires, CONICET, Argentina
Pabellón de Industrias, Ciudad Universitaria 1428 Buenos Aires, Argentina
Palabras clave:Adsorption; Algorithms; Atmospheric pressure; Carbon dioxide; Carbon monoxide; Catalysts; Chemical reactors; Computer simulation; Low temperature effects; Mathematical models; Reaction kinetics; Water; Hydrogen production; Industrial low-temperature converters; Langmuir-Hinshelwood model; Water-gas shift reaction; Hydrogen
Año:1995
Volumen:20
Número:12
Página de inicio:949
Página de fin:956
DOI: http://dx.doi.org/10.1016/0360-3199(94)00130-R
Título revista:International Journal of Hydrogen Energy
Título revista abreviado:Int J Hydrogen Energy
ISSN:03603199
CODEN:IJHED
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v20_n12_p949_Amadeo

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Citas:

---------- APA ----------
Amadeo, N.E. & Laborde, M.A. (1995) . Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor. International Journal of Hydrogen Energy, 20(12), 949-956.
http://dx.doi.org/10.1016/0360-3199(94)00130-R
---------- CHICAGO ----------
Amadeo, N.E., Laborde, M.A. "Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor" . International Journal of Hydrogen Energy 20, no. 12 (1995) : 949-956.
http://dx.doi.org/10.1016/0360-3199(94)00130-R
---------- MLA ----------
Amadeo, N.E., Laborde, M.A. "Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor" . International Journal of Hydrogen Energy, vol. 20, no. 12, 1995, pp. 949-956.
http://dx.doi.org/10.1016/0360-3199(94)00130-R
---------- VANCOUVER ----------
Amadeo, N.E., Laborde, M.A. Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor. Int J Hydrogen Energy. 1995;20(12):949-956.
http://dx.doi.org/10.1016/0360-3199(94)00130-R