Highly Active and Stable Ni2P/SiO2 Catalyst for Hydrogenation of C9 Petroleum Resin

作者：Jiang Lin; Feng Feng^*; Jiang Dahao; Guan Zhengyu; Li Xiaonian

来源：China Petroleum Processing & Petrochemical Technology, 2016, 18(1): 36-43.

• Ni2P/SiO2
• C-9 petroleum resin
• catalytic hydrogenation
• high activity
• excellent stability

Catalytic hydrogenation is an appropriate method for the improvement of C-9 petroleum resin (C9PR) quality. In this study, the Ni2P/SiO2 (containing 10% of Ni) catalyst prepared by the temperature-programmed reduction (TPR) method was used for hydrogenation of C-9 petroleum resins. The effect of reaction conditions on catalytic performance was studied, and the results showed that the optimum reaction temperature, pressure and liquid hourly space velocity (LHSV) was 250 degrees C, 6.0 MPa, and 1.0 h(-1), respectively. The bromine numbers of hydrogenated products were maintained at low values (similar to 250 mgBr/100g) within 300 h, showing the high activity and stability of Ni2P/SiO2 catalyst. The fresh and spent catalysts were characterized by X-ray diffraction (XRD), BET surface area (BET) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) pyridine adsorption, and X-ray photoelectron spectroscopy (XPS). Compared with the traditional sulfurated-NiW catalysts, Ni2P possessed globe-like structure instead of layered structure like the active phase of NiWS, thereof exposing more active sites, which were responsible for the high activity of Ni2P/SiO2 catalyst. The stability of Ni2P/SiO2 catalyst was probably attributed to its high sulfur tolerance, antisintering, anti-coking and carbon-resistance ability. These properties might be further ascribed to the special Ni-P-S surface phase, high thermal stability of Ni2P nanoparticles and weak surface acidity for the Ni2P/SiO2 catalyst.

• 出版日期2016-3
• 单位浙江工业大学