固体超强酸催化剂改性的研究进展

Research Progress in Modification of Solid Superacid Catalysts

综述了国内外有关SO42-/MxOy型固体超强酸催化剂在载体、促进剂、贵金属的引入等方面的改性方法。分析了SO42-/MxOy型固体超强酸的催化机理和失活原因。详细说明了载体中引入纳米材料、稀土元素、其他金属元素(Al,V)、交联剂、分子筛等对催化剂活性和稳定性的影响,阐述了通过使用S2O82-代替SO42-、使用WO3、MoO3、PO43等代替SO42-或引入稀土金属离子改变促进剂完成催化剂改性的方法,以及引入贵金属Pt、Pd等在催化剂改性方面的研究进展。最后展望了SO42-/MxOy型固体超强酸催化剂的发展前景。

The latest research achievement of modification of solid superacid catalysts SO42-/MxOy on the carrier,accelerants and the introduction of noble metals were summarized.The catalytic mechanism and deactivation of this type of catalysts were analyzed.Effects of carrier modification,including nano-materials,rare earth elements,other metal elements（Al,V）,crosslinking agents,molecular sieves on catalytic activity and stability were introduced.Meanwhile the progress in using S2O82-,rare earth ions,other ions（Ni2＋,Sn4＋）,WO3,MoO3,PO43 as accelerants and modification with Pt、Pd were described.Finally the prospects of the research and applications of SO42-/MxOy solid superacid catalysts were predicted.