Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor

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,...

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Autor principal: Amadeo, Norma Elvira
Publicado: 1995
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v20_n12_p949_Amadeo
http://hdl.handle.net/20.500.12110/paper_03603199_v20_n12_p949_Amadeo
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spelling paper:paper_03603199_v20_n12_p949_Amadeo2023-06-08T15:34:37Z Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor Amadeo, Norma Elvira 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 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. Fil:Amadeo, N.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1995 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v20_n12_p949_Amadeo http://hdl.handle.net/20.500.12110/paper_03603199_v20_n12_p949_Amadeo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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
spellingShingle 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
Amadeo, Norma Elvira
Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor
topic_facet 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
description 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.
author Amadeo, Norma Elvira
author_facet Amadeo, Norma Elvira
author_sort Amadeo, Norma Elvira
title Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor
title_short Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor
title_full Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor
title_fullStr Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor
title_full_unstemmed Hydrogen production from the low-temperature water-gas shift reaction: Kinetics and simulation of the industrial reactor
title_sort hydrogen production from the low-temperature water-gas shift reaction: kinetics and simulation of the industrial reactor
publishDate 1995
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v20_n12_p949_Amadeo
http://hdl.handle.net/20.500.12110/paper_03603199_v20_n12_p949_Amadeo
work_keys_str_mv AT amadeonormaelvira hydrogenproductionfromthelowtemperaturewatergasshiftreactionkineticsandsimulationoftheindustrialreactor
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