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

Journal of Chemical Sciences

C S Gopinath¹  Kapil Soni²  Manoj Kumar²  Shelu Garg²  Thallada Bhaskar²  V V D N Prasad²  G Murali Dhar2³  J K Gupta² 

[1] Catalysis Division, CSIR-National Chemical Laboratory, Pune 411 008, India$$;CSIR-Indian Institute of Petroleum (IIP), Dehradun 248 005, India$$;Department of Chemical Engineering, GVP College of Engineering, Madhurawada, Visakhapatnam 530 048, India$$

关键词: PFHS method;    MoS2;    SBA-15;    HDS;    promotional effects.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

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°RC. 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.

【 授权许可】

Unknown