Shelu Garg

Novel highly active FSM-16 supported molybdenum catalyst for hydrotreatment

FSM-16 (Folded Sheet Silica) supported catalysts could accommodate 12 wt% Mo (18% MoO(3)) as a monolayer with higher dispersion than any other silica support; these catalysts showed outstanding HDS and HYD activities compared to gamma-Al(2)O(3), amorphous silica, and other mesoporous silica supported catalysts.

Effect of method of preparation on hydrodesulphurization activity of Co- or Ni-promoted MoS2/SBA-15 catalysts

Abstract.Ordered mesoporous material SBA-15 was synthesized and used as a support for the preparation of molybdenum sulphide catalysts through precipitation from homogeneous solution (PFHS) technique with the Mo content varying from 2–12 wt%. The prepared catalysts were evaluated for thiophene hydrodesulphurization catalytic activities at 400°C. Catalysts prepared through PFHS method resulted in highly dispersed MoS2 catalysts, which were inferred from powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), low temperature oxygen chemisorptions (LTOC) and BET surface area analysis. The relationship between XPS intensity ratio, oxygen chemisorption and catalytic activities is discussed in terms of highly dispersed nano particles of MoS2 and its consequence in accommodating more promoted atoms at the edge sites.n Figure.The ordered mesoporous material SBA-15 prepared using triblock polymer is used to prepare Mo, CoMo, and NiMo catalysts by PFHS technique. A comparison with γ-Al2O3-supported catalysts indicated that this support and preparation method combination increases the activities by about three times.