Potassium effect in K-Ni(Co)PW/Al₂O₃ catalysts for selective hydrotreating of model FCC gasoline

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• 作者：D. Ishutenko^a ; P. Minaev^a ; Yu. Anashkin^a ; M. Nikulshina^a ; A. Mozhaev^a ; K. Maslakov^b ; P. Nikulshin^a ; ^{p.a.nikulshin@gmail.com}
• 关键词：Selective hydrodesulfurization ; KNi(Co)WS ; FCC gasoline ; Thiophene ; Hexene-1
• 刊名：Applied Catalysis B: Environmental
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：203
• 期：Complete
• 页码：237-246
• 全文大小：2123 K
• 卷排序：203

文摘

Using K led to the simultaneous decrease of Ni(Co)WS and rise of Ni(Co)Sx. K adding poisoned the active sites and declined selectivity of Ni(Co)PW/Al2O3. Modified catalysts can be ranged on the activity KWS < KNiWS << CoSx+KWS. Increase of HDS/HYDO selectivity is followed by a decrease of HDS conversion. The relevance of modifying catalyst with K strongly depends on a S content in feed.