Thiophene Poisoning and reactivation of a supported nickel hydrogenation catalyst: The effect of temperature
作者： X. L. Seoane , A. Arcoya
关键词:
摘要: The extent and type of poisoning an 8 wt% Ni/γ-Al 2 O 3 catalyst by thiophene has been examined in ethylbenzene hydrogenation reaction, between 403 523K. results suggest that at the higher temperatures deactivation can take place through two different mechanisms. In one case, formation Ni-S surface species on more active sites beginning produces a slow irreversible poisoning. other, planar adsorption other fast reversible deactivation. At lower temperatures, second mechanism seems to be predominant due fact hydrogenolysis activity diminishes
sci-hub.se 参考文章(18)
Calvin H. Bartholomew, Mechanisms of Nickel Catalyst Poisoning Studies in Surface Science and Catalysis. ,vol. 34, pp. 81- 104 ,(1987) , 10.1016/S0167-2991(09)60352-9
J.P. Boitiaux, J. Cosyns, F. Verna, Poisoning of Hydrogenation Catalysts. How to Cope with this General Problem Studies in Surface Science and Catalysis. ,vol. 34, pp. 105- 123 ,(1987) , 10.1016/S0167-2991(09)60353-0
P.K. Agrawal, W.D. Fitzharris, J.R. Katzer, Sulfur Poisoning and Carbon Deactivation of Alumina-Supported Ni, Co, Fe and Ru Catalysts in CO Hydrogenation Studies in Surface Science and Catalysis. ,vol. 6, pp. 179- 200 ,(1980) , 10.1016/S0167-2991(08)65230-1
J. Biswas, G.M. Bickle, P.G. Gray, D.D. Do, The Role of Crystallite Structure on Mechanisms of Coke and Sulphur Poisoning in Catalytic Reforming Studies in Surface Science and Catalysis. ,vol. 34, pp. 553- 565 ,(1987) , 10.1016/S0167-2991(09)60391-8
K. Ahmed, D. Chadwick, L.S. Kershenbaum, “Mechanisms for Thiophene Poisoning of Nickel Catalysts: Effect of Crystallite Size” Studies in Surface Science and Catalysis. ,vol. 34, pp. 513- 521 ,(1987) , 10.1016/S0167-2991(09)60387-6
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
E.B. Maxted, The Poisoning of Metallic Catalysts Advances in Catalysis. ,vol. 3, pp. 129- 178 ,(1951) , 10.1016/S0360-0564(08)60106-6
Calvin H. Bartholomew, Arthur H. Uken, Metal boride catalysts in methanation of carbon monoxide: III. Sulfur resistance of nickel boride catalysts compared to nickel and raney nickel Applied Catalysis. ,vol. 4, pp. 19- 29 ,(1982) , 10.1016/0166-9834(82)80285-6
P WENTRCEK, Deactivation of alumina-supported nickel and ruthenium catalysts by sulfur compounds Journal of Catalysis. ,vol. 61, pp. 232- 241 ,(1980) , 10.1016/0021-9517(80)90359-0
J OSTERMAIER, Platinum catalyst deactivation in low-temperature ammonia oxidation reactions: I. Oxidation of ammonia by molecular oxygen Journal of Catalysis. ,vol. 41, pp. 277- 292 ,(1976) , 10.1016/0021-9517(76)90343-2