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La promoted Ni/α-Al2O3 Catalysts for Syngas Methanation
Abstract:The Ni/α-Al2O3 catalysts with different amounts of La as promoter from 0 to 4 wt % were prepared, characterized and their catalytic activity was investigated in syngas methanation reaction. Effects of reaction temperature and lanthanum loading on carbon oxides conversion and methane selectivity were also studied. Adding certain amount of lanthanum to 10Ni /α-Al2O3 catalysts can decrease the average NiO crystallite diameter which leads to higher activity and stability while excessive addition would cause deactivation quickly. Stability on stream towards deactivation was observed up to 800 min at 500 °C, 0.1MPa and 600000 mL·g-1·h-1.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1070443Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 3297
 J. Kopyscinski, T. J. Schildhauer, and S. M. A. Biollaz, "Production of synthetic natural gas (SNG) from coal and dry biomass -A technology review from 1950 to 2009," Fuel, vol. 89, no. 8, pp. 1763-1783, August 2010.
 G. A. Mills, and F. W. Steffgen, "Catalytic Methanation," Catal. Rev., vol. 8, no. 2, pp. 159-210, 1973.
 S. Hwang, J. Lee, U. G. Hong, J. G. Seo, J. C. Jung, D. J. Koh, H. Lim, C. Byun, and I. K. Song ."Methane production from carbon monoxide and hydrogen over nickel-alumina xerogel catalyst: Effect of nickel content," J. Ind. Eng. Chem., vol. 17, pp. 154-157, July 2011.
 R. W. R. Zwart, and H. Boerrigter, "High Efficiency Co-production of Synthetic Natural Gas (SNG) and Fischer-Tropsch (FT) Transportation Fuels from Biomass," Energy Fuels, vol. 19, no. 2, pp. 591-597, Feb. 2005.
 P. Panagiotopoulou, D.I. Kondarides, and X.E.Verykios, "Selective methanation of CO over supported noble metal catalysts: Effects of the nature of the metallic phase on catalytic performance," Appl.Catal.A:Gen.,vol. 344, no. 1-2, pp. 45-54, July 2008.
 Z. Pan, M. Dong, X. Meng, X. Zhang, X. Mu, B. Zong, "Integration of magnetically stabilized bed and amorphous nickel alloy catalyst for CO methanation," Chem. Eng. Sci., vol. 62, no. 10, pp. 2712-2717, May 2007.
 M. Kramera, K. Stowea, M. Duisberg, M. Reaser, S. Sticher, and W. F. Maier, "The impact of dopants on the activity and selectivity of a Ni-based methanation catalyst," Appl.Catal.A:Gen.,vol. 369, no. 1-2, pp. 42-52, November 2009.
 K. H. Hou, R. Hughes, "The kinetics of methane steam reforming over a Ni/╬▒-Al2O3 catalyst," Chem. Eng. J., vol. 82, pp. 311-328, 2001.
 K.O. Xavier, R. Sreekala, K.K.A. Rashid, K. K. M. Yusuff, and B. Sen, "Doping effects of cerium oxide on Ni/Al2O3 catalysts for methanation," Catal. Today, vol. 49, no. 1-3, pp. 17-21, February 1999.
 J. Zhang, H. Y. Xu, X. L. Jin, Q. J. Ge, and W. Z. Li, "Characterizations and activities of the nano-sized Ni/Al2O3 and Ni/La-Al2O3 catalysts for NH3 decomposition," Appl.Catal.A:Gen.,vol. 290, no. 1-2, pp. 87-96, August 2005.
 F.Ocampo, B. Louis, and A. C. Roger, "Methanation of carbon dioxide over nickel-based Ce0.72Zr0.28O2 mixed oxide catalysts prepared by sol-gel method," Appl.Catal.A:Gen.,vol. 369, no. 1-2, pp. 90-96, November 2009.
 C. W. Hu, J. Yao, H. Q. Yang, Y. Chen, and A. M. Tian, "On the Inhomogeneity of Low Nickel Loading Methanation Catalyst," J. Catal., vol. 166, no. 1, pp. 1-7, February 1997.
 R. Molina, and G. Poncelet, "╬▒-Alumina-Supported Nickel Catalysts Prepared from Nickel Acetylacetonate: A TPR Study," J. Catal., vol. 173, no. 2, pp. 257-267, January 1998.
 A. M. Diskin, R. H. Cunningham, and R. M. Ormerod, "The oxidative chemistry of methane over supported nickel catalysts," Catal. Today, vol. 46, no. 2-3, pp. 147-154, November 1998.
 J. M. Rynkowski, T. Paryjczak, and M. Lenik, "On the nature of oxidic nickel phases in NiO/╬│-Al2O3 catalysts," Appl.Catal.A:Gen., vol. 106, no. 1, pp. 73-82, November 1993.
 S. Natesakhawat, O. Oktar, and U. S. Ozkan, "Effect of lanthanide promotion on catalytic performance of sol-gel Ni/Al2O3 catalysts in steam reforming of propane," J. Molecular Catal. A: Chem., vol. 241, no. 1-2, pp. 133-146, November 2005.
 Y. Bang, J. G. Seo, and I. K. Song, "Hydrogen production by steam reforming of liquefied natural gas (LNG) over mesoporous Ni-La-Al2O3 aerogel catalysts: Effect of La content," Int. J. Hydrogen Energy, vol. 36, no. 14, pp. 8307-8315, July 2011.
 N. Laosiripojana, W. Sutthisripo, and S. Assabumrungrat, "Synthesis gas production from dry reforming of methane over CeO2 doped Ni/Al2O3: Influence of the doping ceria on the resistance toward carbon formation," Chem. Eng. J., vol. 112, no. 1-3, pp. 13-22, September 2005.