Development of Cu-Mo Based Wgs Catalyst for Hydrogen Station and Fuel Processor Applications

WGS reaction over various CexZr1-xO2 mixed oxide supported Cu-Mo bimetallic catalysts was investigated to develop a high performance LTS catalyst for fuel processor and hydrogen station applications. Cu-Mo/CexZr1-xO2 catalysts prepared by co-precipitation and impregnation methods were characterized by N2 physisorption, CO chemisorption, TPR, XRD and TEM techniques. The catalytic performances over the prepared catalysts were compared with these over the commercial Cu-Zn/Al2O3 catalyst. Catalytic activity, coke formation and deactivation under severe conditions were also investigated using the magnetic suspension balance (MSB) for studying activity and coke formation simultaneously by coupling with on-line GC. In this study, 12wt%Cu-2wt%Mo/Ce0.5Zr0.5O2 catalyst showed higher activity and thermal stability than the commercial LTS catalyst for WGS reaction during the thermal cycling reaction under the tested conditions.