Effect of Ni loadings on the activity and coke formation of MgO-modified Ni/Al2O3 nanocatalyst in dr

• 作 者: Zahra Alipour Mehran Rezaei Fereshteh Meshkani
• 机 构: Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Eng
• 出 处: 能源化学
• 发表日期: 2014年5期
• 关键词: nickel catalyst MgO modifier syngas dry reforming coke formation

MgO-modified Ni/Al2O3 catalysts with different Ni loadings were prepared and employed in dry reforming of methane (DRM). The effect of Ni loadings on the activity and coke formation of Ni/MgO-Al2O3 catalysts were investigated. The synthesized catalysts were characterized by XRD, N2 adsorption-desorption, SEM, TPO and TPR techniques. The obtained results showed that increasing nickel loading decreased the BET surface area and increased the catalytic activity and amount of deposited carbon. In addition, the effect of gas hourly space velocity (GHSV) and feed ratio were studied.