Simulation of CO preferential oxidation (COPrOx) monolithic reactors

In this work, a COPrOx monolithic reactor with a CuO/CeO 2/Al2O3 catalytic washcoat was modelled to purify a H2 stream for a 2 kW PEM fuel cell. Preliminary simulations included isothermal monoliths operating between 423 and 463 K, and the optimization of linear axial temperature profiles. For a fix...

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Publicado:	2014
Materias:	COPrOx heat exchange modelling monolithic reactor PEM fuel cell CO preferential oxidation CO-PROX Heat exchange Monolithic reactor Models
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15426580_v12_n1_p_Jeifetz http://hdl.handle.net/20.500.12110/paper_15426580_v12_n1_p_Jeifetz
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_15426580_v12_n1_p_Jeifetz
record_format	dspace
spelling	paper:paper_15426580_v12_n1_p_Jeifetz2023-06-08T16:21:08Z Simulation of CO preferential oxidation (COPrOx) monolithic reactors COPrOx heat exchange modelling monolithic reactor PEM fuel cell CO preferential oxidation CO-PROX Heat exchange Monolithic reactor PEM fuel cell Models In this work, a COPrOx monolithic reactor with a CuO/CeO 2/Al2O3 catalytic washcoat was modelled to purify a H2 stream for a 2 kW PEM fuel cell. Preliminary simulations included isothermal monoliths operating between 423 and 463 K, and the optimization of linear axial temperature profiles. For a fixed total system size and a desired CO outlet molar fraction lower than 20 ppm, an isothermal temperature profile maximized the global selectivity towards CO oxidation. Then, different schemes of adiabatic monoliths with interstage cooling were modelled and evaluated. It was found that wide operating temperature ranges lower the necessary number of stages, but decrease the global selectivity and rise system sensitivity to inlet temperatures. A 1D heterogeneous model was used to simulate the monoliths. © 2014 by Walter de Gruyter Berlin / Boston 2014. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15426580_v12_n1_p_Jeifetz http://hdl.handle.net/20.500.12110/paper_15426580_v12_n1_p_Jeifetz
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	COPrOx heat exchange modelling monolithic reactor PEM fuel cell CO preferential oxidation CO-PROX Heat exchange Monolithic reactor PEM fuel cell Models
spellingShingle	COPrOx heat exchange modelling monolithic reactor PEM fuel cell CO preferential oxidation CO-PROX Heat exchange Monolithic reactor PEM fuel cell Models Simulation of CO preferential oxidation (COPrOx) monolithic reactors
topic_facet	COPrOx heat exchange modelling monolithic reactor PEM fuel cell CO preferential oxidation CO-PROX Heat exchange Monolithic reactor PEM fuel cell Models
description	In this work, a COPrOx monolithic reactor with a CuO/CeO 2/Al2O3 catalytic washcoat was modelled to purify a H2 stream for a 2 kW PEM fuel cell. Preliminary simulations included isothermal monoliths operating between 423 and 463 K, and the optimization of linear axial temperature profiles. For a fixed total system size and a desired CO outlet molar fraction lower than 20 ppm, an isothermal temperature profile maximized the global selectivity towards CO oxidation. Then, different schemes of adiabatic monoliths with interstage cooling were modelled and evaluated. It was found that wide operating temperature ranges lower the necessary number of stages, but decrease the global selectivity and rise system sensitivity to inlet temperatures. A 1D heterogeneous model was used to simulate the monoliths. © 2014 by Walter de Gruyter Berlin / Boston 2014.
title	Simulation of CO preferential oxidation (COPrOx) monolithic reactors
title_short	Simulation of CO preferential oxidation (COPrOx) monolithic reactors
title_full	Simulation of CO preferential oxidation (COPrOx) monolithic reactors
title_fullStr	Simulation of CO preferential oxidation (COPrOx) monolithic reactors
title_full_unstemmed	Simulation of CO preferential oxidation (COPrOx) monolithic reactors
title_sort	simulation of co preferential oxidation (coprox) monolithic reactors
publishDate	2014
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15426580_v12_n1_p_Jeifetz http://hdl.handle.net/20.500.12110/paper_15426580_v12_n1_p_Jeifetz
_version_	1768542521787416576

Simulation of CO preferential oxidation (COPrOx) monolithic reactors

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