沸石负载Ni催化剂在甲烷干重整中的稳定性(英文)

• 作 者: Anis H. FAKEEHA Wasim U. KHAN Ahmed S. AL‐FATESH Ahmed E. ABASAEED
• 机 构: Chemical Engineering Department, College of Engineering, King Saud University,
• 出 处: 催化学报
• 发表日期: 2013年04期
• 关键词: Ni programmed reforming zeolite impregnation calcination desorption methane fres

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.

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.