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Analysis of an idealized counter-current microchannel-based reactor to produce hydrogen-rich syngas from methanol

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Mecánica de Fluidoses
dc.contributor.authorFernández Galisteo, Daniel
dc.contributor.authorFernández Tarrazo, Eduardo Antonio
dc.contributor.authorJiménez, Carmen
dc.contributor.authorKurdyumov, Vadim N.
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2020-05-20T09:35:54Z
dc.date.available2020-05-20T09:35:54Z
dc.date.issued2019-08-08
dc.description.abstractIn an effort to investigate the suitability of the concept of portable hydrogen production, we examine numerically the combustion of a very rich methanol-air mixture in a micro-gap assembly consisting of multiple counter-current channels of finite length separated by thin solid conducting walls. Within the mathematical framework of the narrow-channel approximation, the problem can be formulated as a one-dimensional model for a single channel with an extra term representing heat transfer from the hot stream products to the fresh reactants in adjacent channels. We show that the heat recirculation enables superadiabatic temperatures inside the reactor and promotes the oxidation of methanol far beyond the conventional rich limit of flammability. The result is a feasible thermal partial oxidation that produces hydrogen without the need for a catalyst. The paper presents an analysis of the model burner performance with detailed gas-phase kinetics in stationary regimes in terms of operating variables such as the equivalence ratio and the gas inflow velocity, and in terms of physical parameters such as the length of the reformer and the conductivity of the wall material. The idealized microreactor predicts maximum hydrogen yield of the order of 60% at equivalence ratios between 3 and 6.en
dc.description.sponsorshipThis research was supported by projects ENE2015-65852-C2-1-R and ENE2015-65852-C2-2-R (MINECO/FEDER, UE).en
dc.format.extent14
dc.identifier.bibliographicCitationDaniel Fernández-Galisteo... [et al.]. Analysis of an idealized counter-current microchannel-based reactor to produce hydrogen-rich syngas from methanol. International Journal of Hydrogen Energy; 44 (42): 23807-23820en
dc.identifier.doihttps://doi.org.10.1016/j.ijhydene.2019.07.098
dc.identifier.issn0360-3199
dc.identifier.publicationfirstpage23807
dc.identifier.publicationissue42
dc.identifier.publicationlastpage23820
dc.identifier.publicationtitleINTERNATIONAL JOURNAL OF HYDROGEN ENERGYen
dc.identifier.publicationvolume44
dc.identifier.urihttps://hdl.handle.net/10016/30449
dc.identifier.uxxiAR/0000024602
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. ENE2015-65852-C2-1-Res
dc.relation.projectIDGobierno de España. ENE2015-65852-C2-2-Res
dc.rights© 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserveden
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Españaes
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.otherFuel Reformingen
dc.subject.otherHydrogenen
dc.subject.otherMicro Combustionen
dc.subject.otherNarrow-Channel Approximationen
dc.subject.otherPartial Oxidationen
dc.titleAnalysis of an idealized counter-current microchannel-based reactor to produce hydrogen-rich syngas from methanolen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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