Abstract:

Ni/γ-Al₂O₃, Ni/Y-zeolite, and Ni/H-ZSM-5 catalysts were prepared using the incipient wetness impregnation method. Their catalytic performance in dry reforming of methane was studied. The fresh and used catalysts and deposited carbon were characterized using H₂ temperature-programmed reduction, temperature-programmed oxidation, N₂ adsorption-desorption, X-ray diffraction, and thermogravimetric analysis. The H-ZSM-5-supported Ni catalyst proved to be more stable than the other two catalysts, as it had the lowest carbon deposition.

Key words: Carbon dioxide, Dry reforming, Methane, Nickel catalyst, H-ZSM-5 zeolite, Carbon deposition