STUDY ON PROPERTIES OF ONE-STEP PRESULFIDED Ni-Mo/Al2O3 CATALYST

Abstract

Abstract: One-step presulfided Ni-Mo/Al2O3 catalyst FS-1 was prepared by using a water-soluble complex sulfide as sulfurizing agent. The oxidation state Ni-Mo/Al2O3 catalyst FO-1 is used as the reference catalyst. The physical and chemical properties of the catalysts were characterized by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). The performance of FS-1 and FO-1 on the hydrodesulfurization and hydrodenitrogenation of coking naphtha was investigated. The results showed that the performance of FS-1 is superior to FO-1. This attributes to the higher sulfidity of FS-1, the appropriate number of accumulation layers of MoS2, and the length of the wafer. It is easier to form the type II Ni-Mo-S active phase with high hydrogenation activity, so that it has higher intrinsic hydrogenation activity.

Key words: one-step, presulfidation, hydrogenation catalyst

CLC Number:

References

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