Hydrogen Production from Steam Reforming of Methanol on Mn Promoted Cu/ZnO/Al_2O_3 Catalysts

The steam reforming of methanol on Mn promoted Cu/ZnO/Al_2O_3 catalysts was studied in this paper. The effects of catalyst composition, reaction temperatures, ratio of water to methanol and feed velocity on steam reforming reaction of methanol were investigated. Under optimized For Cu45Zn45Al5Mn5 catalyst, when reaction temperature was 220-240℃, molar ratio of water to methanol was 1.0-1.2 and liquid space velocity was about 3.0 h~(-1), higher methanol conversion and hydrogen yield and lower outlet CO concentration were obtained, and catalyst showed good stability.