WANG Xin, ZHANG Shun-guang, HOU Kai-hu
(Hebei University of Technology, School of Chemical Engneering & Technology, Tanjin, 300130)
Abstract: Unsupported Ni(Co)-Mo-Al2O3 nano-catalysts ( the particle size about 15~30nm ) were prepared using the thermal precipitation method, and were characterized using specific surface area (BET), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscope(TEM). Evaluation of hydrodeoxygenation activity of the catalysts was conducted in a continuous flow fixed-bed reactor, using the acetic acid as a probe compound. The effects of Ni, Co active component and calcination temperature on catalyst crystalline structure and activity were investigated emphatically. The results show that the hydrodeoxygenation activity of Mo-Al2O3 catalysts improve with adding Ni, Co. Furthermore the hydrodeoxygenation activity of Ni-Mo-Al2O3 catalysts is higher than that of Co-Mo catalysts under the reaction conditions examined. When the calcination temperature is increased from 500℃ to 550℃, the surface area of catalysts increases, the crystallization degree of catalysts is improved, and activity of catalysts is enhance.
Key words: non-supported; Ni(Co)-Mo-Al2O3; nano-catalyst;
Email: khou@hebut.edu.cn
Key word: unsupported; Ni(Co)-Mo-Al2O3; nano-catalyst; hydrodeoxygenation
Journal of Molecular Catalysis, Vol. 24, Issue 2, 2010, 153-157
