Citation: SONG Hua, GUO Yun-Tao, LI Feng, YU Hong-Kun. Preparation, Hydrodesulfurization and Hydrodenitrogenation Performance of a Ni₂P/TiO₂-Al₂O₃ Catalyst[J]. Acta Physico-Chimica Sinica, ;2010, 26(09): 2461-2467. doi: 10.3866/PKU.WHXB20100937 shu

Preparation, Hydrodesulfurization and Hydrodenitrogenation Performance of a Ni₂P/TiO₂-Al₂O₃ Catalyst

1.
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering,Northeast Petroleum University, Daqing 163318, Heilongjiang Province, P. R. China

Received Date: 30 March 2010
Available Online: 3 August 2010
Fund Project: 黑龙江省科技厅(2009G0947-00)资助项目 (2009G0947-00)

We prepared a TiO₂-Al₂O₃ complex support by the sol-gel method. A nickel phosphide catalyst, Ni₂P/ TiO₂-Al₂O₃, was prepared by the impregnation method. The catalysts were characterized by X-ray diffraction (XRD), N₂-adsorption specific surface area measurements (BET), thermogravimetry-differential thermal analysis (TG-DTA), and X-ray photoelectron spectroscopy (XPS). The catalysts were evaluated using a lab-scale continuous flow fixed-bed reactor for simultaneously hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) of thiophene and pyridine. The effects of different supports, Ni₂P loading, Ni/P molar ratio, and calcination temperature on catalyst activity for the HDS and HDN were studied. The catalytic activity of the Ni₂P/TiO₂-Al₂O₃ catalyst with a TiO₂ mass fraction of 80%, a Ni₂P loading of 30.0%(w), a Ni/P molar ratio of 1/2 as well as a calcination temperature of 500^oCwas found to be optimal. At a reaction temperature of 360 ^o, a pressure of 3.0 MPa, a hydrogen/oil ratio of 800 (V/V), and a liquid hourly space velocity of 1.5 h^-1, the conversion of thiophene HDS and pyridine HDN were 61.32%and 64.43%, respectively.
- Nickel phosphide,
- Titaniumdioxide,
- Aluminiumtrioxide,
- Hydrodesulfurization,
- Hydrodenitrogenation
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation, Hydrodesulfurization and Hydrodenitrogenation Performance of a Ni₂P/TiO₂-Al₂O₃ Catalyst