Catalytic Methanation of CO and CO2 in Coke Oven Gas over Ni–Co/ZrO2–CeO2

The methanation of CO and CO2 present in coke oven gas was performed in a fixed-bed catalytic reactor at a reaction temperature between 200 and 400 C. Different support materials, including SiO2, Al2O3, ZrO2, and CeO2, were doped with a different percentage of active metals using a standard impregnation and coprecipitation method. The catalysts were characterized using Brunauer-Emmett-Teller analysis, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and temperature-programmed desorption techniques. The activity of all samples was tested in terms of the percentage of CO and CO2 conversion and CH, selectivity. The results were analyzed on the basis of the difference in the catalytic performance at different active metal loadings and support materials. The effect of the catalytic support on the reducibility, morphology, and active metal dispersion was investigated. The ZrO2-CeO2-supported catalyst prepared under coprecipitation can attain 100% CO conversion at around 300 C and >= 95% CO2 conversion at 400 C and has a CH, selectivity of 99%.

[1]  X. Quan,et al.  Selective catalytic oxidation of ammonia to nitrogen over ceria–zirconia mixed oxides , 2012 .

[2]  S. Park,et al.  Raney Ni catalysts derived from different alloy precursors Part II. CO and CO2 methanation activity , 2005 .

[3]  Beatriz Fidalgo,et al.  Dry Reforming of Coke Oven Gases Over Activated Carbon to Produce Syngas for Methanol Synthesis , 2010 .

[4]  Li Li,et al.  Thermodynamic and kinetic model of reforming coke-oven gas with steam , 2010 .

[5]  Wei Wang,et al.  Recent advances in catalytic hydrogenation of carbon dioxide. , 2011, Chemical Society reviews.

[6]  P. Sánchez,et al.  Methanation of CO, CO2 and selective methanation of CO, in mixtures of CO and CO2, over ruthenium carbon nanofibers catalysts , 2010 .

[7]  Xenophon E. Verykios,et al.  Selective methanation of CO over supported Ru catalysts , 2009 .

[8]  Kunchana Bunyakiat,et al.  Catalytic oxidation of methane over CeO2-ZrO2 mixed oxide solid solution catalysts prepared via urea hydrolysis , 2002 .

[9]  Masato R. Nakamura,et al.  Mechanisms of methanation of carbon dioxide and carbon monoxide over nickel/alumina catalysts , 1993 .

[10]  Søren Dahl,et al.  Methanation of CO over nickel: Mechanism and kinetics at high H2/CO ratios. , 2005, The journal of physical chemistry. B.

[11]  Ming Zhao,et al.  Catalytic methanol decomposition to carbon monoxide and hydrogen over Pd/CeO2-ZrO2-La2O3 with different Ce/Zr molar ratios , 2009 .

[12]  K. H. Schulz,et al.  Surface chemistry and microstructural analysis of CexZr1−xO2−y model catalyst surfaces , 2003 .

[13]  F. Zhang,et al.  Cerium oxidation state in ceria nanoparticles studied with X-ray photoelectron spectroscopy and absorption near edge spectroscopy , 2004 .

[14]  S. H. Kim,et al.  Effect of pretreatment on the activity of Ni catalyst for CO removal reaction by water–gas shift and methanation , 2008 .

[15]  A. Wokaun,et al.  Characterization of surface processes at the Ni-based catalyst during the methanation of biomass-derived synthesis gas: X-ray photoelectron spectroscopy (XPS) , 2007 .

[16]  X. Verykios,et al.  Selective methanation of CO over supported noble metal catalysts: Effects of the nature of the metallic phase on catalytic performance , 2008 .

[17]  Brian F. G. Johnson,et al.  Hydrogen or synthesis gas production via the partial oxidation of methane over supported nickel–cobalt catalysts , 2007 .

[18]  R. Behm,et al.  What drives the selectivity for CO methanation in the methanation of CO2-rich reformate gases on supported Ru catalysts? , 2011 .

[19]  Claus H. Christensen,et al.  CO methanation over supported bimetallic Ni–Fe catalysts: From computational studies towards catalyst optimization , 2007 .

[20]  Xionggang Lu,et al.  Hydrogen production from simulated hot coke oven gas by catalytic reforming over Ni/Mg(Al)O catalysts , 2009 .

[21]  Xionggang Lu,et al.  Performance of an oxygen-permeable membrane reactor for partial oxidation of methane in coke oven gas to syngas , 2011 .

[22]  V. A. Kuz’min,et al.  Design, scale-out, and operation of a preferential CO methanation reactor with a nickel–ceria catalyst , 2011 .

[23]  G. Huber,et al.  Effect of Sn addition to Pt/CeO2–Al2O3 and Pt/Al2O3 catalysts: An XPS, 119Sn Mössbauer and microcalorimetry study , 2006 .

[24]  Xionggang Lu,et al.  Catalytic reforming of model tar compounds from hot coke oven gas with low steam/carbon ratio over Ni/MgO–Al2O3 catalysts , 2010 .

[25]  A. Trovarelli,et al.  CO2 Methanation Under Transient and Steady-State Conditions over Rh/CeO2 and CeO2-Promoted Rh/SiO2: The Role of Surface and Bulk Ceria , 1995 .

[26]  M. Biesinger,et al.  New interpretations of XPS spectra of nickel metal and oxides , 2006 .

[27]  Z. Önsan,et al.  Interaction between nickel and molybdenum in Ni–Mo/Al2O3 catalysts: I: CO2 methanation and SEM-TEM studies , 1998 .

[28]  Anne-Cécile Roger,et al.  Effect of Ce/Zr composition and noble metal promotion on nickel based CexZr1−xO2 catalysts for carbon dioxide methanation , 2011 .

[29]  Zhenpeng Hu,et al.  CO2 methanation on Ru-doped ceria , 2011 .

[30]  D. Trimm,et al.  The effect of support and synthesis method on the methanation activity of alumina-supported cobalt–ruthenium–lanthana catalysts , 2011 .

[31]  Patricio Ruiz,et al.  Catalytic production of methane from CO2 and H2 at low temperature: insight on the reaction mechanism , 2010 .

[32]  G. Lu,et al.  Effect of Pt and Pd promoter on Ni supported catalysts—A TPR/TPO/TPD and microcalorimetry study , 2008 .

[33]  T. Abe,et al.  CO2 methanation property of Ru nanoparticle-loaded TiO2 prepared by a polygonal barrel-sputtering method , 2009 .

[34]  Tilman J. Schildhauer,et al.  Methanation in a fluidized bed reactor with high initial CO partial pressure: Part I—Experimental investigation of hydrodynamics, mass transfer effects, and carbon deposition , 2011 .

[35]  M. Engelhard,et al.  Water-induced formation of cobalt oxides over supported cobalt/ceria–zirconia catalysts under ethanol-steam conditions , 2010 .

[36]  V. Rodríguez-Lugo,et al.  Hydrogen production by oxidative steam reforming of methanol over Ni/CeO2–ZrO2 catalysts , 2011 .

[37]  Chongqi Chen,et al.  Water-gas shift reaction over CuO/CeO2 catalysts: Effect of CeO2 supports previously prepared by precipitation with different precipitants , 2011 .

[38]  W. Su,et al.  Transport property and Raman spectra of nanocrystalline solid solutions Ce0.8Nd0.2O2−δ with different particle size , 2001 .

[39]  Kyung-Ran Hwang,et al.  Advanced nickel metal catalyst for watergas shift reaction , 2011 .

[40]  S. Therdthianwong,et al.  Oxidative steam reforming of ethanol over Ni/Al2O3 catalysts promoted by CeO2, ZrO2 and CeO2–ZrO2 , 2009 .

[41]  Carla E. Hori,et al.  Thermal stability of oxygen storage properties in a mixed CeO2-ZrO2 system , 1998 .

[42]  Bo Ping Zhang,et al.  Co-methanation of carbon monoxide and carbon dioxide on supported nickel and cobalt catalysts prepared from amorphous alloys , 1998 .

[43]  S. Therdthianwong,et al.  Synthesis gas production from dry reforming of methane over Ni/Al2O3 stabilized by ZrO2 , 2008 .

[44]  Anne-Cécile Roger,et al.  Methanation of carbon dioxide over nickel-based Ce0.72Zr0.28O2 mixed oxide catalysts prepared by sol–gel method , 2009 .

[45]  S. Osuwan,et al.  Catalytic activity of CeO2–ZrO2 mixed oxide catalysts prepared via sol–gel technique: CO oxidation , 2001 .

[46]  Yongxiang Zhao,et al.  Effect of ZrO2 promoter on structure and catalytic activity of the Ni/SiO2 catalyst for CO methanation in hydrogen-rich gases , 2010 .

[47]  Hailei Zhao,et al.  Hydrogen production by catalytic partial oxidation of coke oven gas in BaCo0.7Fe0.2Nb0.1O3−δ membranes with surface modification , 2011 .

[48]  K. Jun,et al.  A highly active catalyst, Ni/Ce–ZrO2/θ-Al2O3, for on-site H2 generation by steam methane reforming: pretreatment effect , 2003 .

[49]  Zhibin Yang,et al.  Catalytic partial oxidation of coke oven gas to syngas in an oxygen permeation membrane reactor combined with NiO/MgO catalyst , 2010 .

[50]  M. Szynkowska,et al.  Characterization of Ru/CeO2-Al2O3 catalysts and their Performance in CO2 Methanation , 2000 .

[51]  G. Flamant,et al.  Ce 3d XPS investigation of cerium oxides and mixed cerium oxide (CexTiyOz) , 2008 .

[52]  S. Fujita,et al.  Difference in the selectivity of CO and CO2 methanation reactions , 1997 .