ROLE OF MoO3 AND La2O3 PROMOTERS IN Ni-CATALYZED METHANATION REACTIONS OF CO
ROLE OF MoO3 AND La2O3 PROMOTERS IN Ni-CATALYZED METHANATION REACTIONS OF CO出 版 物:《Journal of Energy Chemistry》 (能源化学(英文版))
年 卷 期:1994年第3期
页 面:339-347页
学科分类:081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术]
主 题:Ni MO AI TPR ROLE OF MoO3 AND La2O3 PROMOTERS IN Ni-CATALYZED METHANATION REACTIONS OF CO La
摘 要:A series of catalysts containing nickel were prepared by *** activity,heat resistance and sulfur resistance of catalysts were inves-tigated using catalytic *** experimental results show that the Ni/γ-AlOcatalysts containing molybdenum or lanthanum possess higher activity,better heat resistance and sulfur resistance than Ni/γ-*** sur-face behaviour of catalysts and the role of molybdenum or lanthanum in Ni-Mo-La/γ-AlOsystem have been studied by XRD,TEM,XPS and *** hasbeen shown that the addition of molybdenum or lanthanum can increase theconcentration of nickel atoms on the surface of catalysts,make the crystallinegranule of nickel smaller,increase the number of active centers of nickel andaffect the electronic structure of *** these avtions will improve thecatalytic activity and surface behaviour of catalllysts.