Energy & Fuels, Vol.20, No.6, 2616-2622, 2006
Integrated catalytic process for conversion of biomass to hydrogen
Catalytic steam and autothermal reforming of glucose, glycerol, and industrial wastewater was evaluated as a basis for the development of a process for the production of hydrogen from renewable feedstocks. A catalyst containing copper, nickel, and palladium was found to be effective under atmospheric pressure within the temperature range of 500-800 degrees C. The effects of the steam-to-carbon and air-to-fuel ratios on the char formation rates were studied. The problem of char formation was found to be predominant for the relatively high concentrations required for a commercially viable process and used for the feed streams of the pure components. However, two different industrial wastewaters obtained from the potato industry and the brewing industry were partially converted to hydrogen through steam reforming using this Ni/Pd/Cu catalyst, without noticeable char formation. The results obtained during reforming of the wastewater were compared with the results obtained during autothermal reforming of the pure species.