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- In relation to this article, we declare that there is no conflict of interest.
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Received November 14, 2012
Accepted September 26, 2013
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Catalytic performance and characterization of cobalt-nickel nano catalysts for CO hydrogenation
Department of Physical Chemistry, Faculty of Chemistry, Razi University, P. O. Box 67149, Kermanshah, Iran 1Department of Chemistry, Islamic Azad University, Kermanshah Branch, Iran
Korean Journal of Chemical Engineering, January 2014, 31(1), 37-44(8), 10.1007/s11814-013-0186-5
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Abstract
A series of Co-Ni nano catalysts were prepared by co-precipitation method. We investigated the effect of Co/Ni molar ratios precipitate and calcination conditions on the catalytic performance of cobalt nickel catalysts for Fisher-Tropsch synthesis (FTS). The catalyst containing 90%Co/10%Ni was found to be optimal for the conversion of synthesis gas to light olefins. The activity and selectivity of the optimal catalyst were studied in different operational conditions. The results show that the best operational conditions are the H2/CO=2/1 molar feed ratio at 310 ℃ and_x000D_
GHSV=1,200 h^(-1) under 5 bar of pressure. The prepared catalysts were characterized by powder X-ray diffraction (XRD), N2 adsorption-desorption measurements such as BET and BJH methods, transmission electron microscopy (TEM) and thermal gravimetric analysis (TGA).
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Parkinson G, Chem. Eng., 4, 39 (1997)
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Stoop F, Wiele KV, Appl. Catal. A: Gen., 23, 35 (1986)
Arakawa H, Kiyozumi Y, Suzuki K, Chem. Lett., 176, 1341 (1986)
Hindermann JP, Hutchings GJ, Kiennemann A, Catal. Rev.Sci. Eng., 35, 1 (1993)
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Leth IR, Howden MG, Appl. Catal. A: Gen., 37, 75 (1988)
Shen WJ, Yan SR, Zhou JL, Zhang BJ, J. Nat. Gas Conv., 4, 311 (1995)
Iglesia E, Appl. Catal. A: Gen., 161(1-2), 59 (1997)
Li S, Krishnamoorthy S, Meitzner GD, Iglesia E, Catal. Lett., 47, 197 (2002)
Trovarelli, Catalysis by ceria and related materials, London, Imperial College Press, 123 (2002)
Gaube J, Herzog K, Knig L, Schliebs B, Chem. Ing. Technol., 58, 682 (1986)
Varma RL, Liu DC, Mathews JF, Bakhshi NN, Can.J. Chem. Eng., 63, 72 (1985)
Mirzaei AA, Faizi M, Habibpour R, Appl. Catal. A: Gen., 306, 98 (2006)
Zhang HB, Schrader GL, J. Catal., 95, 325 (1985)
Shroff MD, Kalakkad DS, Coulter KE, Kohler SD, Harrington MS, Jackson NB, Sault AG, Datye AK, J. Catal., 156(2), 185 (1995)
Kuramori K, Suehiro K, Oishi Y, Stud. Surf. Sci. Catal., 136, 417 (2001)
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Girardon JS, Quinet E, Griboval-Constant A, Chernavskii PA, Gengembre L, Khodakov AY, J. Catal., 248(2), 143 (2007)
Lermontov AS, Girardon JS, Griboval-Constant A, Pietrzyk S, Khodakov AY, Catal. Lett., 101(1-2), 117 (2005)
Krishna KR, Bell AT, J. Catal., 139, 104 (1993)
Anderson RB, Seligman B, Shultz JF, Kelly R, Elliott MA, Ind. Eng. Chem., 44, 391 (1952)
Matsumoto DK, Satterfield CN, Energy Fuels., 3, 249 (1989)
Barrault J, Forquy C, Perrichon V, Appl. Catal. A: Gen., 5, 119 (1983)
Bukur DB, Lang XS, Akgerman A, Feng ZT, Ind. Eng. Chem. Res., 36(7), 2580 (1997)
Schulz H, Claeys M, Appl. Catal. A: Gen., 186(1-2), 71 (1999)
Schulz H, Van Steen E, Claeys M, Stud. Surf. Sci. Catal., 81, 455 (1994)
Griboval-Constant A, Khodakov AY, Bechara R, Zholobenko VL, Stud. Surf. Sci. Catal., 144, 609 (2002)
