Effect of cerium content on textural and hydrodesulfurization performance for dibenzothiophene over a bulk Ni2P catalyst. (February 2019)

• Record Type: Journal Article
• Authors: Yu, Yunwu; Liang, Lianjie; Xu, Changwei; Dai, Yubo; Pan, Wenhao; Ding, Zhaoyang; Liu, Yunxue
• Is Part Of: Progress in reaction kinetics and mechanism. Volume 44:Number 1(2019)
• Page Start: 37
• Page End: 44
• Publication Date: 2019-02
• Subjects: Nickel phosphide -- ceria -- dibenzothiophene -- hydrodesulfurization; Chemical kinetics -- Periodicals; 541.39405
• DOI: 10.1177/1468678319830798
• Languages: English
• ISSNs: 1468-6783

Abstract

A series of ceria promoted Ni2 P catalysts were prepared and evaluated in dibenzothiophene hydrodesulfurization steam. These catalysts were characterized by X-ray diffraction, N2 adsorption–desorption, CO chemisorptions, and X-ray photoelectron spectroscopy. The results showed that the addition of ceria into the bulk Ni2 P catalyst was conducive to the formation of the Ni2 P phase and contributed to a higher surface area, leading to a better dispersion and smaller crystallite size of Ni2 P particles. The Cex Ni2 P catalysts showed higher dibenzothiophene hydrodesulfurization activity than Ni2 P catalyst and the Ce0.09 Ni2 P catalyst showed the highest dibenzothiophene hydrodesulfurization activity. The Ce0.09 Ni2 P catalyst showed a dibenzothiophene hydrodesulfurization conversion of 94.5% at the reaction conditions of 320°C, 4.0 MPa, a H2 /oil ratio of 500 (V/V), and a weight hourly space velocity of 8.0 h −1 . The dibenzothiophene was mainly transformed through desulfurization pathway.