Fuel processors in portable fuel cell systems require high efficiency, stable operation and rapid start-up time. External heating stabilizes operation of the conventional steam reforming system and allows higher hydrogen concentration in the reformate stream. In this study, we utilized a modified fuel processor that introduced a slip stream of air into the process line right before the water gas shift reactor. The air stream rapidly heated the water gas shift reactor to the desired temperature, eliminating initial CO concentration surges in the downstream. CO concentration quickly stabilized at the minimum concentration without surges by rapid preheating of the water gas shift reactor. The modified system reached a steady state within 10 min.


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    Title :

    Start-up characteristics of commercial propane steam reformer for 200 We portable fuel cell system


    Contributors:

    Published in:

    Publication date :

    2010


    Size :

    9 Seiten




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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