Kinetics and Systems Analysis for Producing Hydrogen from Methanol and Hydrocarbons
نویسندگان
چکیده
Fuel cell powered electric cars using on-board methanol or hydrocarbon reforming to produce a hydrogenrich gas represent a low-emissions alternative to gasoline internal combustion engines (ICE) with well-towheel efficiencies of 17 %. For the overall methanol process, a simplified model of the reaction network consisting of the total oxidation of methanol, the reverse water-gas shift reaction, and the steam-reforming of methanol is proposed. Individual kinetic measurements for the latter two reactions on a commercial CuO/ZnO/Al2O3 catalyst are presented.Partial oxidation (POX) of hydrocarbons (isooctane) has shown that noble metal catalysts can provide power densities of 33 kWth per litre reactor at 475 °C compared to 54 kWth per litre reactor with methanol at 250 °C.
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