Abstract
Effect of Pt impregnation on the textural properties, surface element distributions and catalytic behavior of a precipitated iron-based catalyst for Fischer–Tropsch synthesis (FTS) was investigated by N2 physical adsorption, temperature-programmed reduction (TPR), Mössbauer effect spectrometer (MES), X-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HRTEM). Low levels of Pt addition lead to an increase in BET surface area. The result of XPS indicates that Pt enriches on the catalyst surface after being calcined. HRTEM shows that Pt crystallites with diameter about 2 nm are well dispersed on the surface of the catalyst (100Fe/1Pt/4 K/16SiO2). The results of TPR and MES clearly indicate that Pt facilitates the reduction and carburization of Fe2O3 to some extend. The reaction tests in a slurry reactor give the result that the Pt impregnation remarkably increases the FTS activity, and suppresses the selectivities of the light hydrocarbons and the olefins.
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Jothimurugesan K, Goodwin JG Jr, Gangwal SK, Spivey JJ (2000) Catal Today 58:335
Riedel T, Schulz H, Schaub G, Jun K, Hwang J, Lee K (2003) Top Catal 26:41
Maretto C, Krishna R (2001) Catal Today 66:241
Dry ME (2002) Catal Today 71:227
Jin Y, Datye AK (2000) J Catal 196:8
Wu BS, Bai L, Xiang HW, Li YW, Zhang ZX, Zhong B (2004) Fuel 83:205
Li S, Li A, Krishnamoorthy S, Iglesia E (2001) Catal Lett 77:197
Luo MS, Davis BH (2003) Appl Catal A: Gen 246:171
Zhang CH, Yang Y, Teng BT, Li TZ, Zheng HY, Xiang HW, Li YW (2006) J Catal 237:405
Garten RL, Ollis DF (1974) J Catal 35:232
Richter B, Baerns M (1985) Chem Zeitung 109:395
Luo MS, O’Brien R, Davis BH (2004) Catal Lett 98:17
Knifton JF, Lin JJ (1982) US Patent 4,366,259
Bruce LA, Hoang M, Hughes AE, Turney TW (1993) Appl Catal A: Gen 100:51
Iglesia E, Soled SL, Baumgartner JE, Reyes SC (1995) J Catal 153:108
Vada S, Hoff A, Adnanes E, Schanke D, Holmen A (1995) Top Catal 2:155
Schanke D, Vada S, Blekkan EA, Hilmen AM, Hoff A, Holmen A (1995) J Catal 156:85
Jacobs G, Das TK, Zhang Y, Li J, Racoillet G, Davis BH (2002) Appl Catal A: Gen 233:263
Iglesia E, Soled SL, Fiato RA, Via GH (1993) J Catal 143:345
Xu J, Bartholomew CH, Sudweeks J, Eggett DL (2003) Top Catal 26:55
Yang Y, Xiang HW, Tian L, Wang H, Zhang CH, Tao ZC, Xu YY, Zhong B, Li YW (2005) Appl Catal A: Gen 284:105
Wang Y, Wang S, Zhao Y, Zhu B, Kong F, Wang D, Wu S, Huang W, Zhang S (2007) Sens Actuators B 125:79
Moreno B, Chinarro E, Fierro JLG, Jurado JR (2007) J Power Sources 169:98
Leith IR, Howden MG (1988) Appl Catal 37:75
Boudart M, Delbouille A, Dumesic JA, Khammouma S, Topsøe H (1975) J Catal 37:486
Kock AJHM, Fortuin HM, Geus JW (1985) J Catal 96:261
Clausen BS, Topsøe H, Morup S (1989) Appl Catal 48:327
Guczi L, Kiricsi I (1999) Appl Catal A 186:375
Guczi L, Beck A, Horváth A, Horváth D (2002) Top Catal 19:157
Li TZ, Yang Y, Zhang CH, An X, Wan HJ, Tao ZC, Xiang HW, Li YW, Yi F, Xu BF (2007) Fuel 86:921
Sudsakorn K, Goodwin JG, Adeyiga AA (2003) J Catal 213:204
Motiope TR, Dlamini HT, Hearne GR, Conville NG (2002) Catal Today 71:335
Li S, Meitzner GD, Iglesia E (2001) J Phys Chem B 105:5743
Yang Y, Xiang HW, Xu YY, Bai L, Li YW (2004) Appl Catal A: Gen 266:181
Huber GW, Bartholomew H (2001) Stud Surf Sci Catal 136:283
Acknowledgments
We deeply appreciate the financial support from National Outstanding Young Scientists Foundation of China (20625620) and National Key Basic Research Program of China via 973 plan (2007CB216401). This work is also supported by Synfuels CHINA. Co., Ltd.
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Yu, W., Wu, B., Xu, J. et al. Effect of Pt Impregnation on a Precipitated Iron-based Fischer–Tropsch Synthesis Catalyst. Catal Lett 125, 116–122 (2008). https://doi.org/10.1007/s10562-008-9524-3
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DOI: https://doi.org/10.1007/s10562-008-9524-3