A 25-kW on-board methanol fuel processor has been developed. It consists of a methanol steam reformer, which converts methanol to hydrogen-rich gas mixture, and two metal membrane modules, which clean-up the gas mixture to high-purity hydrogen. It produces hydrogen at rates up to 25 N m3/h and the purity of the product hydrogen is over 99.9995% with a CO content of less than 1 ppm. In this fuel processor, the operating condition of the reformer and the metal membrane modules is nearly the same, so that operation is simple and the overall system construction is compact by eliminating the extensive temperature control of the intermediate gas streams. The recovery of hydrogen in the metal membrane units is maintained at 70-75% by the control of the pressure in the system, and the remaining 25-30% hydrogen is recycled to a catalytic combustion zone to supply heat for the methanol steam-reforming reaction. The thermal efficiency of the fuel processor is about 75% and the inlet air pressure is as low as 4 psi. The fuel processor is currently being integrated with 25-kW polymer electrolyte membrane fuel-cell (PEMFC) stack developed by the Hyundai Motor Company. The stack exhibits the same performance as those with pure hydrogen, which proves that the maximum power output as well as the minimum stack degradation is possible with this fuel processor. This fuel-cell 'engine' is to be installed in a hybrid passenger vehicle for road testing.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Metal membrane-type 25-kW methanol fuel processor for fuel-cell hybrid vehicle


    Beteiligte:
    Han, Jaesung (Autor:in) / Lee, Seok-Min (Autor:in) / Chang, Hyuksang (Autor:in)

    Erschienen in:

    Journal of Power Sources ; 112 , 2 ; 484-490


    Erscheinungsdatum :

    2002


    Format / Umfang :

    7 Seiten, 12 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    Metal membrane integrated methanol onboard fuel processor for fuel cell hybrid vehicle

    Han, Jaesung / Lee, Seok-Min / Kim, Il-Soo et al. | Tema Archiv | 2002


    Fuel processor for an indirect methanol fuel cell vehicle

    Ramaswamy,S. / Sundaresan,M. / Hauer,K.H. et al. | Kraftfahrwesen | 2000


    Fuel processor for an indirect methanol fuel cell vehicle

    Ramaswamy, S. / Sundaresan, M. / Hauer, K.H. et al. | Tema Archiv | 2000


    Fuel Processor for an Indirect Methanol Fuel Cell Vehicle

    Eggert, Anthony / Hauer, Karl-Heinz / Sundaresan, Meena et al. | SAE Technical Papers | 2000