Development of Micro-structured Catalytic Wall Reactors for Hydrogen Production by Methanol Steam Reforming over Novel Pt/In_2O_3/Al_2O_3 Catalysts

摘要

Methanol steam reforming was investigated over novel Pd/In_2O_3/Al_2O_3 and Pt/In_2O_3/Al_2O_3 catalysts coated into microchannels. The investigations revealed, that Pt is much more active at still moderate CO selectivity compared to Pd. An In_2O_3 content of 25 – 30 wt.% was required to minimize the CO selectivity of the Pt-containing samples. At a Pt/In ratio of 0.6, the catalyst with the highest Pt content of 15 wt.% showed also highest activity. Switching to conditions of oxidative steam reforming further increased the activity of the catalysts.