ABSTRACT In the present study the catalytic steam gasification of biomass to produce hydrogen-rich gas with calcined dolomite and Nano-NiO/γ-Al2O3 as catalyst in an externally heated fixed bed reactor was investigated. The influence of the catalyst and reactor temperature on yield and product composition was studied at the temperature range of 700oC - 900oC. Over the ranges of experimental conditions examined, calcined dolomite revealed better catalytic performance, at the presence of steam, tar was completely decomposed as temperature increases from 800oC to 900oC. Higher temperature resulted in more H2 and CO2 production, and dry gas yield. The highest H2 content of 51.02 mol%, and the highest H2 yield of 1.66 m3/kg biomass were observed at the highest temperature level of 900oC.
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nullY. Feng, B. Xiao, K. Goerner, G. Cheng and J. Wang, "Influence of Catalyst and Temperature on Gasification Performance by Externally Heated Gasifier," Smart Grid and Renewable Energy, Vol. 2 No. 3, 2011, pp. 177-183. doi: 10.4236/sgre.2011.23021.
 J. C. Escobar, E. S. Lora, O. J. Venturini, et al., “Biofuels: Environment, Technology and Food Security,” Renewable and Sustainable Energy Reviews, Vol. 13, No. 6-7, 2009, pp. 1275-1287. doi:10.1016/j.rser.2008.08.014
 X. T. Li, J. R. Grace, C. J. Lim, et al., “Biomass Gasification in a Circulating Fluidized Bed,” Biomass and Bioenergy, Vol. 26, No. 2, 2004, pp. 171-193.
 K. Maniatis and E. Millich, “Energy from Biomass and Waste: The Contribution of Utility Scale Biomass Gasi-fication Plants,” Biomass and Bioenergy, Vol. 15, No. 3, 1998, pp. 195-200. doi:10.1016/S0961-9534(98)00052-X
 R. C. Saxena, D. K. Adhikari and H. B. Goyal, “Biomass-Based Energy Fuel through Biochemical Routes: A Review,” Renewable and Sustainable Energy Reviews, Vol. 13, No. 1, 2009, pp. 167-178.
 A. L. Dicks, “Hydrogen Generation from Natural Gas for the Fuel Cell Systems of Tomorrow,” Journal of Power Sources, Vol. 61, No. 1-2, 1996, pp. 113-124.
 L. F. Brown, “A Comparative Study of Fuels for On-Board Hydrogen Production for Fuel-Cell-Powered Automobiles,” International Journal of Hydrogen Energy, Vol. 26, No. 4, 2001, pp. 381-397.
 L. Wang, C. L. Weller, D. D. Jones, et al., “Contemporary Issues in Thermal Gasification of Biomass and Its Application to Electricity and Fuel Production,” Biomass and Bioenergy, Vol. 32, No. 7, 2008, pp. 573-581.
 P. Weerachanchai, M. Horio and C. Tangsathitkulchai, “Effects of Gasifying Conditions and Bed Materials on Fluidized Bed Steam Gasification of Wood Biomass,” Bioresource Technology, Vol. 100, No. 3, 2009, pp. 1419 -1427. doi:10.1016/j.biortech.2008.08.002
 X. H. Hao, L. J. Guo, X. Mao, et al., “Hydrogen Production from Glucose Used as a Model Compound of Biomass Gasified in Supercritical Water,” International Journal of Hydrogen Energy, Vol. 28, No. 1, 2003, pp. 55-64.
 G. Iaquaniello and A. Mangiapane, “Integration of Biomass Gasification with MCFC,” International Journal of Hydrogen Energy, Vol. 31, No. 3, 2006, pp. 399-404.
 G. Hu, S. Xu, S. Li, et al., “Steam Gasification of Apricot Stones with Olivine and Dolomite as Downstream Catalysts,” Fuel Processing Technology, Vol. 87, No. 5, 2006, pp. 375-382. doi:10.1016/j.fuproc.2005.07.008
 S. Turn, C. Kinoshita, Z. Zhang, et al., “An Experimental Investigation of Hydrogen Production from Biomass Gasification,” International Journal of Hydrogen Energy, Vol. 23, No. 8, 1998, pp. 641-648.
 A. K. Dalai, N. Batta, I. Eswaramoorthi, et al., “Gasification of Refuse Derived Fuel in a Fixed Bed Reactor for Syngas Production,” Waste Management, Vol. 29, No. 1, 2009, pp. 252-258. doi:10.1016/j.wasman.2008.02.009
 L. Wei, S. Xu, L. Zhang, et al., “Steam Gasification of Biomass for Hydrogen-Rich Gas in a Free-Fall Reactor,” International Journal of Hydrogen Energy, Vol. 32, No. 1, 2007, pp. 24-31. doi:10.1016/j.ijhydene.2006.06.002
 K. Gallucci, S. Stendardo and P. U. Foscolo, “CO2 Capture by Means of Dolomite in Hydrogen Production from Syn Gas,” International Journal of Hydrogen Energy, Vol. 33, No. 12, 2008, pp. 3049-3055.
 M. R. Mahishi and D. Y. Goswami, “An Experimental Study of Hydrogen Production by Gasification of Biomass in the Presence of a CO2 Sorbent,” International Journal of Hydrogen Energy, Vol. 32, No. 14, 2007, pp. 2803-2808. doi:10.1016/j.ijhydene.2007.03.030
 J. A. Medrano, M. Oliva, J. Ruiz, et al., “Catalytic Steam Reforming of Acetic Acid in a Fluidized Bed Reactor with Oxygen Addition,” International Journal of Hydrogen Energy, Vol. 33, No. 16, 2008, pp. 4387-4396.
 M. Delgado, M. Bigeriego and E. Glardiola, “Water Hyacinth Biomass Production in Madrid,” Biomass and Bioenergy, Vol. 3, No. 1, 1992, pp. 57-61.