Comparison of citric acid and glycol effects on the state of active phase species and catalytic properties of CoPMo/Al₂O₃ hydrotreating catalysts

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• 作者：Aleksey Pimerzin^a ; Alexander Mozhaev^a ; Andrey Varakin^a ; Konstantin Maslakov^b ; Pavel Nikulshin^a ; ^{p.a.nikulshin@gmail.com}
• 关键词：Hydrotreating ; Heteropolyanion ; CoMoS ; Citric acid ; Triethylene glycol
• 刊名：Applied Catalysis B: Environmental
• 出版年：2017
• 出版时间：15 May 2017
• 年：2017
• 卷：205
• 期：Complete
• 页码：93-103
• 全文大小：2508 K
• 卷排序：205

文摘

CoPMo/Al2O3 catalysts were prepared using H3PMo12O40 and Co complexes. Addition of either CA or glycols led to several beneficial effects. CoMoS edge promotion degree increased with a pore volume gain by catalysts after sulfidation. Glycols provide better protection of PMo HPA against destruction than citric acid. Catalysts with CA, TEG or the EG-CA mixture demonstrated higher activity in DBT HDS.