The ethylbenzene hydrogenation over Ni–H3PW12O40/SiO2 in the presence of thiophene
作者： Jinbao Zheng , Zhongfang Wu , Zhenyu Yan , Juanjuan Li , Weikun Lai
DOI: 10.1016/J.FUEL.2012.05.018
关键词:
摘要: Ni–HPW/SiO2 catalysts with H3PW12O40 (HPW) loading in the range of 0.1–8% were prepared by a modified sol–gel method. The as-prepared bimodal pore distribution not only possess relatively large and surface area, but exhibit high activity for ethylbenzene hydrogenation even presence thiophene up to 640 ppm. It is evident that nickel oxide particles are small well-dispersed on these from X-ray powder diffraction (XRD), scanning electron microscopy (SEM) transmission (TEM) characterization. results temperature-programmed reduction hydrogen (H2-TPR), desorption ammonia (H2 NH3-TPD) also strongly suggest interaction between Ni component HPW takes place, consequently remarkable H2 spillover considerable increase acidic site concentration catalysts. Further, Fourier transform infrared spectroscopy (FT-IR) pyridine adsorption show most acid sites related Lewis metal species therefore prone be electron-deficient. confirmed plays critical role improvement sulfur resistance Ni-based
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C.H. Bartholomew, P.K. Agrawal, J.R. Katzer, Sulfur Poisoning of Metals Advances in Catalysis. ,vol. 31, pp. 135- 242 ,(1982) , 10.1016/S0360-0564(08)60454-X
P.G. Savva, K. Goundani, J. Vakros, K. Bourikas, Ch. Fountzoula, D. Vattis, A. Lycourghiotis, Ch. Kordulis, Benzene hydrogenation over Ni/Al2O3 catalysts prepared by conventional and sol-gel techniques Applied Catalysis B-environmental. ,vol. 79, pp. 199- 207 ,(2008) , 10.1016/J.APCATB.2007.10.023
J Wang, The effect of metal–acid balance in Pt-loading dealuminated Y zeolite catalysts on the hydrogenation of benzene Applied Catalysis A-general. ,vol. 184, pp. 181- 188 ,(1999) , 10.1016/S0926-860X(98)00369-X
Hao Jin, Xiaodong Yi, Xiaodan Sun, Bo Qiu, Weiping Fang, Weizheng Weng, Huilin Wan, Influence of H4SiW12O40 loading on hydrocracking activity of non-sulfide Ni-H4SiW12O40/SiO2 catalysts Fuel. ,vol. 89, pp. 1953- 1960 ,(2010) , 10.1016/J.FUEL.2009.11.031
Toshio Okuhara, Noritaka Mizuno, Makoto Misono, Catalytic Chemistry of Heteropoly Compounds Advances in Catalysis. ,vol. 41, pp. 113- 252 ,(1996) , 10.1016/S0360-0564(08)60041-3
M. Gómez-Cazalilla, A. Infantes-Molina, J. Mérida-Robles, E. Rodríguez-Castellón, A. Jiménez-López, Chromium Species as Captors of Sulfur Molecules on Nickel-Based Hydrotreating Catalysts Energy & Fuels. ,vol. 23, pp. 101- 110 ,(2009) , 10.1021/EF800741N
R Molina, G Poncelet, Hydrogenation of Benzene over Alumina-Supported Nickel Catalysts Prepared from Ni(II) Acetylacetonate Journal of Catalysis. ,vol. 199, pp. 162- 170 ,(2001) , 10.1006/JCAT.2001.3169
D. Srinivas, R. Srivastava, P. Ratnasamy, Transesterifications over titanosilicate molecular sieves Catalysis Today. ,vol. 96, pp. 127- 133 ,(2004) , 10.1016/J.CATTOD.2004.06.113
Hiroyuki Yasuda, Toshio Sato, Yuji Yoshimura, Influence of the acidity of USY zeolite on the sulfur tolerance of Pd–Pt catalysts for aromatic hydrogenation Catalysis Today. ,vol. 50, pp. 63- 71 ,(1999) , 10.1016/S0920-5861(98)00463-5
Chunshan Song, An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel Catalysis Today. ,vol. 86, pp. 211- 263 ,(2003) , 10.1016/S0920-5861(03)00412-7