An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers

It is well known that membrane reactors are inherently two-dimensional systems in which species concentrations vary as a consequence of both the reaction and permeation across the membrane, which occurs in the direction perpendicular to that of the main gas flow. Recently, an expression for an enhan...

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Autores principales:	Maria Anna Murmura, Chiara Rocchetti, Maria Cristina Annesini
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	concentration gradients 2D model membrane reactors hydrogen Chemical technology TP1-1185 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/815b4aa8719448cd90ab8c39dbec410b
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spelling	oai:doaj.org-article:815b4aa8719448cd90ab8c39dbec410b2021-11-25T18:19:28ZAn Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers10.3390/membranes111108052077-0375https://doaj.org/article/815b4aa8719448cd90ab8c39dbec410b2021-10-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/805https://doaj.org/toc/2077-0375It is well known that membrane reactors are inherently two-dimensional systems in which species concentrations vary as a consequence of both the reaction and permeation across the membrane, which occurs in the direction perpendicular to that of the main gas flow. Recently, an expression for an enhanced Sherwood number was developed to describe the hydrogen concentration gradients arising in methane steam-reforming membrane reactors as a consequence of the combined effect of hydrogen production, dispersion, and permeation. Here, the analysis is developed in further detail with the aim of (i) assessing the validity of the simplifying assumptions made when developing the 1D model and (ii) identifying the operating conditions under which it is possible to employ the 1D model with the enhanced Sherwood number.Maria Anna MurmuraChiara RocchettiMaria Cristina AnnesiniMDPI AGarticleconcentration gradients2D modelmembrane reactorshydrogenChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 805, p 805 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	concentration gradients 2D model membrane reactors hydrogen Chemical technology TP1-1185 Chemical engineering TP155-156
spellingShingle	concentration gradients 2D model membrane reactors hydrogen Chemical technology TP1-1185 Chemical engineering TP155-156 Maria Anna Murmura Chiara Rocchetti Maria Cristina Annesini An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers
description	It is well known that membrane reactors are inherently two-dimensional systems in which species concentrations vary as a consequence of both the reaction and permeation across the membrane, which occurs in the direction perpendicular to that of the main gas flow. Recently, an expression for an enhanced Sherwood number was developed to describe the hydrogen concentration gradients arising in methane steam-reforming membrane reactors as a consequence of the combined effect of hydrogen production, dispersion, and permeation. Here, the analysis is developed in further detail with the aim of (i) assessing the validity of the simplifying assumptions made when developing the 1D model and (ii) identifying the operating conditions under which it is possible to employ the 1D model with the enhanced Sherwood number.
format	article
author	Maria Anna Murmura Chiara Rocchetti Maria Cristina Annesini
author_facet	Maria Anna Murmura Chiara Rocchetti Maria Cristina Annesini
author_sort	Maria Anna Murmura
title	An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers
title_short	An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers
title_full	An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers
title_fullStr	An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers
title_full_unstemmed	An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers
title_sort	enhanced sherwood number to model the hydrogen transport in membrane steam reformers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/815b4aa8719448cd90ab8c39dbec410b
work_keys_str_mv	AT mariaannamurmura anenhancedsherwoodnumbertomodelthehydrogentransportinmembranesteamreformers AT chiararocchetti anenhancedsherwoodnumbertomodelthehydrogentransportinmembranesteamreformers AT mariacristinaannesini anenhancedsherwoodnumbertomodelthehydrogentransportinmembranesteamreformers AT mariaannamurmura enhancedsherwoodnumbertomodelthehydrogentransportinmembranesteamreformers AT chiararocchetti enhancedsherwoodnumbertomodelthehydrogentransportinmembranesteamreformers AT mariacristinaannesini enhancedsherwoodnumbertomodelthehydrogentransportinmembranesteamreformers
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An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers

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