Autothermal reforming of methane over Ni catalysts supported on nanocrystalline MgO with high surface area and plated-like shape

作者：Rezaei Mehran^*; Meshkani Fereshteh; Ravandi Abolfazl Biabani; Nematollahi Behzad; Ranjbar Atiyeh; Hadian Narges; Mosayebi Zeinab

来源：International Journal of Hydrogen Energy, 2011, 36(18): 11712-11717.

DOI：10.1016/j.ijhydene.2011.06.056

• Autothermal reforming
• Syngas
• Nickel catalyst

Autothermal reforming of methane (ATRM), combination of partial oxidation and steam reforming was performed over MgO supported Ni catalysts. The preparation of MgO via surfactant-assisted precipitation method led to obtain a nanocrystalline carrier for nickel catalysts. The results demonstrated that methane conversion is significantly increased with increasing the Ni content (5, 7, 10 and 15%Ni) and methane conversion of 15%Ni/MgO was higher than that of other catalysts with lower Ni loading in all operation temperatures. In addition, increasing the system operation temperatures led to decrease in H(2)/CO due to the fact that water-gas shift reaction was thermodynamically unfavorable at elevated temperatures. This catalyst also exhibited stable catalytic performance during 50 h time on stream. Furthermore, the influences of varying GHSV and feed ratio on activity of 15%Ni/MgO catalyst were investigated.

• 出版日期2011-9