Zhao Y.-Y.,Key Laboratory of Petrochemical Catalysis Science and Technology |
Duan Z.-W.,Key Laboratory of Petrochemical Catalysis Science and Technology |
Qi S.-J.,Petrochina |
Meng X.-H.,Key Laboratory of Petrochemical Catalysis Science and Technology |
And 4 more authors.
Journal of Molecular Catalysis | Year: 2014
Ni-Al Hydrotalcite-like Compounds(HTLCs) as catalyst precursors with different Ni/Al ratio were prepared by impregnation method. The hydrodesulfurization (HDS) catalysts Ni/Al2O3 were synthesized with Ni-Al HTLCs as catalyst precursors and characterized by X-ray Diffraction (XRD), Hydrogen Temperature programmed reduction (H2-TPR), thermogravimetric (TG) analysis and Fourier Transform Infrared Spectroscopy (FT-IR). The catalytic performance of thus synthesized Ni/Al2O3 catalysts was evaluated by a 10ml fixed bed at different conditions (temperature, pressure, volume space velocity, H2/oil ratio). Both XRD and FT-IR results showed that the Ni-Al hydrotalcite-like compounds are sucessfully synthesized. The strongest peak in the XRD pattern of Ni-Al2O3-HT is corresponding to the diffraction angle of (111) crystal surface of Ni metal particles and there are two distinct weight loss processes in the TG curves. The synthesized hydrodesulfurization (HDS) Ni/Al2O3 catalysts have good desulfurization performance and the sulfur content in the FCC fuels can be reduced to below 10 ppm(w), suggesting that synthesized hydrodesulfurization (HDS) Ni/Al2O3 catalysts may have good prospects in hydrodesulfurization field. ©, 2014, Science Press. All right reserved.