CAJ | 학술논문

通过等体积浸渍法用不同含量的钛对 Al2 O3和 SiO2载体进行改性，在改性 Al2 O3载体上分别负载 Mo，Ni，NiP，在改性 SiO2载体上负载 NiP，制备了一系列加氢脱硫催化剂，研究了载体进行钛改性后，不同载体上不同活性组分的还原温度变化规律。用程序升温还原法对催化剂的还原性能进行表征。结果表明：钛改性氧化铝载体和钛改性二氧化硅载体均可以降低活性组分的还原温度；与氧化铝载体相比，NiP 在氧化硅载体上的还原温度明显提高；与未改性的催化剂相比，钛改性改变了活性组分与载体之间的相互作用，降低了活性组分的还原温度。
통과등체적침지법용불동함량적태대 Al2 O3화 SiO2재체진행개성，재개성 Al2 O3재체상분별부재 Mo，Ni，NiP，재개성 SiO2재체상부재 NiP，제비료일계렬가경탈류최화제，연구료재체진행태개성후，불동재체상불동활성조분적환원온도변화규률。용정서승온환원법대최화제적환원성능진행표정。결과표명：태개성양화려재체화태개성이양화규재체균가이강저활성조분적환원온도；여양화려재체상비，NiP 재양화규재체상적환원온도명현제고；여미개성적최화제상비，태개성개변료활성조분여재체지간적상호작용，강저료활성조분적환원온도。
A series of HDS catalysts were prepared using titanium modified cylindrical Al2 O3 and SiO2 supports. The active components of Mo,Ni and NiP were loaded on Al2 O3 and Ti modified Al2 O3 supports. NiP was supported onto the SiO2 and Ti modified SiO2 supports. The influence of titanium modification was investigated on the reduction temperature of the supported active components by tem-perature programmed reduction (TPR)method. The results show that the titanium modification can lower the reduction temperature of the active components on all catalyst tested. The reduction tempera-ture of NiP on the silica carrier increases significantly compared with that on the alumina carrier. The reason for the lower reduction temperature of active components on the modified catalyst is due to the changes of interaction between active component and carrier by modification of titanium.