Thermal-reforming of Toluene over Core-shell Ni/γ-Al2O3 Catalysts

摘要

In the present study,core-shell Al2O3 was synthesized by hydrothermal method and employed as support for the preparation of Ni/Al2O3 catalysts via an impregnation method.The toluene thermal-reforming was investigated in a fluidized bed reactor using these core-shell Ni/Al2O3 catalysts.The catalysts were characterized with TEM,BET,XRD and H2-TPR techniques.Compared with the catalysts supported on commercial Al2O3,core-shell catalysts exhibited higher specific surface areas,smaller Ni particle sizes and higher catalytic activities.The core-shell catalysts showed high stability during 48h thermalreforming.