ABSTRACT
The classical route to produce hydrogen is steam methane reforming (RostrupNielsen, 1984; Twigg, 1989). The reforming reactions are extremely endothermic, and to achieve high conversions and CO selectivities, reforming is typically performed at high temperatures in presence of a nickel catalyst (Rostrup-Nielsen, 1984; Twigg, 1989; Xu and Froment, 1989). If the objective is to obtain syngas, that is, a mixture containing H2 and CO, the water-gas shift reaction, which converts CO into CO2, has to be avoided.
