Deactivation of alumina-supported nickel and ruthenium catalysts by sulfur compounds
作者： P WENTRCEK
DOI: 10.1016/0021-9517(80)90359-0
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摘要: Deactivation of alumina-supported nickel and ruthenium catalysts by sulfur compounds was studied temperature-programmed desorption, surface reaction, in flow experiments carbon monoxide hydrogen on a commercial catalyst (G-65) containing 25% alumina (Ni/Al) this with 1% iridium added (Ni/Ir/Al) the absence presence sulfide. The Ni/Ir/Al adsorbed 30% more CO than Ni/Al, it desorbed three temperature peaks, compared two desorption peaks for Ni/Al. Carbon dioxide were formed during desorption. On types different reactivities towards hydrogen, only one highly reactive species detected. In sulfide, adsorption decreased, less none methanation reaction decayed at rate which determined catalysts. increased resistance factor two. An 5% deactivated rapidly
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