摘要
浸渍法制备了一系列不同浸渍顺序，金属含量和Ｍｏ前驱体的ＣｏＭｏ／Ｃ催化剂并用脉冲色谱法测定了催化剂的Ｏ２吸附量。考察了催化剂制备，金属担载量，预处理条件，Ｏ２吸附温度，Ａｒ吹扫温度等参数对Ｏ２吸附量的影响。常压微型反应器上测定了催化剂的噻吩加氢脱硫活性。Ｏ２吸附量与噻吩转化率的关联显示了Ｏ２的吸附，可作为检测ＣｏＭｏ／Ｃ催化剂活性的快速简便的替代手段。
CoMo/C catalysts were prepared by pore volume impregnation method with different impregnating sequences, metal compositions and Mo precursors Oxygen chemisorption capacities of the catalysts were determined by pulseflow chromatographic method The effects of preparation method, pretreatment parameteres, adsorption temperature, Ar purge temperature and metal loading on O_2 uptake were discussed Hydrodesulfurization (HDS) activities of CoMo/C catalysts were previously determined Comparison of the O_2 adsorption capacity with the activity data of HDS indicated that O_2 adsorption is a fast activity screening technique for active carbon supported Mo based catalysts
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1998年第2期97-101,共5页
Journal of Fuel Chemistry and Technology
关键词
加氢脱硫
催化剂
脱硫
氧吸附
吸附
钴
钼
hydrodesulfurization catalysts, CoMo/C catalysts, O_2 chemisorption, pulse-Flow chromatography
