LAUSR

Abstract Mixed phase MoS 2 (Ni 2 P)/Al-SBA-15 (10) catalyst was prepared by incipient wet impregnation method using soft chemical approach by low temperature decomposition ATTM and separated phase Ni 2 P//MoS 2 /Al-SBA-15 (10) catalyst was set by simple mechanical separation of Ni 2 P/Al-SBA-15 (10) and MoS 2 /Al-SBA-15 (10) in a fixed bed reactor tube. The efficiency of both the catalysts was investigated for hydrodenitrogenation (HDN) of ortho-Propylaniline (OPA). The promotional effect of Ni 2 P in the mixed phase catalyst was correlated with spill-over hydrogen, hydrogenation active sites and acid sites. The synthesized catalysts were extensively characterized by various techniques such as XRD, BET, TPD/TPR, HR-SEM, HR-TEM, DRS-UV-Vis and XPS. The H 2 pulse chemisorption study in correlation with HDN activity revealed that mixed phase MoS 2 (Ni 2 P)/Al-SBA-15 (10) catalyst possesses high spill-over hydrogen and high surface acidity. This study concluded that promotional effect and synergetic factor of Ni 2 P promoted MoS 2 /Al-SBA-15 (10) in the mixed phase catalyst is competitive over the separated phase Ni 2 P promoted MoS 2 /Al-SBA-15 (10) for HDN of OPA at atmospheric pressure.