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Author(s): Paulo Ribeirinha
M. Abdollahzadeh
Ana Pereira
Frederico Relvas
Marta Boaventura
Adélio Mendes
Title: High temperature PEM fuel cell integrated with a cellular membrane methanol steam reformer: Experimental and modelling
Issue Date: 2018
Abstract: In this work, the methanol steam reforming catalyst was considered into the anodic compartment of a high temperature polymer electrolyte fuel cell (HT-PEMFC), where reforming and electrochemical, reactions occur simultaneously. To avoid the anode electro-catalyst poisoning by methanol, a Pd-Ag membrane, with a thickness of a few micrometres, was considered between the reforming catalyst and the membrane electrode assembly. A 3-dimensional non-isothermal simulator was developed in Fluent (Ansys (TM)) considering a packed bed membrane reactor cell (PBMR-C) combined with a HT-PEMFC in a single unit. The performance of the combined unit depends on the permeability, selectivity and stability of Pd-Ag membrane at 473 K. Therefore, a self-supported Pd-Ag membrane with a thickness of 4 was produced with no defects by magnetron sputtering. The membrane showed a H-2/N-2 molar selectivity of ca. 5800 and permeability of 2.94 x 10(-6) mol/m.s(-1).m(-2).bar(-0.8) at 473 K. The novel PBMR-C/HT-PEMFC after proper validation was analysed by simulation, showing high performance, similar to the one obtained with a HT-PEMFC fed with hydrogen and allowed efficient heat integration between electrochemical and MSR reaction. The PBMR-C/HT-PEMFC also demonstrated to be very compact. The advantageous and limitations of the combined PBMR-C/HT-PEMFC unit are discussed based on the simulated results.
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/UID/EQU/00511/2013 - POCI-01-0145-FEDER-006939/Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia/LEPABE
info:eu-repo/grantAgreement/Comissão de Coordenação e Desenvolvimento Regional do Norte/P2020|Norte2020-Projetos Integrados ICDT/NORTE-01-0145-FEDER-000005/LEPABE-2-ECO-INNOVATION/LEPABE-2-ECO-INNOVATION
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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