Performance of Dealuminated Ni/ZSM-5 Catalyst in Dry Reforming of Methane

Performance of Dealuminated Ni/ZSM-5 Catalyst in Dry Reforming of Methane

Ni/ZSM-5 modified Nano catalyst containing 3, 5 and 7wt. % Ni were prepared by impregnation method for DRM. Dealumination of ZSM-5 carried out by HNO3 solution as a dealumination agent. This process led to increase Si/Al ratio for ZSM-5. For approaching to the higher conversion and H2/CO ratio, higher concentration of acid and lower temperature for treatment of ZSM-5 must be used. The sample that was prepared by higher concentration of acid and lower temperature in dealumination process, with 5%wt Ni showed a better activity and stability than unmodified sample during DRM at 700°C for 30h time on stream.