化学学报 ›› 1998, Vol. 56 ›› Issue (7): 649-654. 上一篇    下一篇

研究论文

新型介孔分子筛KIT-1加氢脱硫催化剂的研究

乐英红;孙渝;高滋   

  1. 复旦大学化学系
  • 发布日期:1998-07-15

Study on disordered mesoporous KIT-1 supported hydrodesulfurization catalysts

LE YINGHONG;SUN YU;GAO ZI   

  • Published:1998-07-15

制备了新型的结构排列无序的介孔分子筛KIT-1和负载Ni, Mo的KIT-1加氢脱硫催化剂。实验结果表明MoO3较易分散在KIT-1的表面,而NiO则容易在其表面形成小晶粒。与以MCM-41和NaY分子筛为载体的Ni, Mo催化剂相比, KIT-1负载催化剂具有较高的加氢脱硫催化活性,因为KIT-1载体具有相互交错的三维孔道结构, 有利于反应物和产物的扩散, 而不容易受孔道堵塞的影响。

关键词: 催化剂, 镍, 加氢脱硫, 分子筛, 钼, 噻吩, 催化活性

MoO3 and NiO were supported on KIT-1, a new disordered mesoporous molecular sieve. MoO3 is homogeneously dispersed as a monolayer on the support, whereas NiO tends to form small crystallites in the mesoporous channels. KIT-1 supported MoO3 and/or NiO catalysts exhibit higher catalytic activities for thiophene hydrodesulfurization than similar MCM-41 and NaY zeolite supported catalysts, because the three dimensional disordered network of short channels in KIT-1 reduces the risk of blockage in the catalysts and facilitates the transport of reactant and product molecules.

Key words: CATALYST, NICKEL, HYDRODESULFURIZATION, MOLECULAR SIEVE, MOLYBDENUM, THIOPHENE, CATALYTIC ACTIVITY

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