Effects of MoO sub(3) loading and calcination temperature on the catalytic performance of MoO sub(3)/CeO sub(2) toward sulfur-resistant methanation

• Published in: Fuel processing technology Vol. 138; pp. 263 - 270
• Main Authors: Wang, Bao-Wei, Yao, Yu-Qin, Liu, Si-Han, Hu, Zong-Yuan, Li, Zhen-Hua, Ma, Xin-Bin
• Format: Journal Article
• Language: English
• Published: 01.10.2015
• Subjects: Calcination; Catalysis; Catalysts; Coal; Conversion; Methanation; Natural gas; Reduction
• ISSN: 0378-3820
• DOI: 10.1016/j.fuproc.2015.06.009

Synthetic natural gas (SNG) production from coal is reconsidered for the rising prices for natural gas and the hope for less dependency on natural gas import and reduction of greenhouse gas CO sub(2) emission. In this paper, the effects of MoO sub(3) loading amounts and calcination temperature on the catalytic performance of MoO sub(3)/CeO sub(2) toward sulfur-resistant methanation were investigated. All the catalysts were prepared by incipient-wetness impregnation method and further characterized by N sub(2) adsorption-desorption, temperature-programmed reduction (TPR), X-ray diffraction (XRD) and Raman spectroscopy (RS). The results show that CO conversion reached optimal value when loading 5 wt.% of MoO sub(3) on the CeO sub(2) support. Also, the "monolayer" saturated coverage of MoO sub(3) over the prepared CeO sub(2) support is about 5 wt.%. The MoO sub(3)/CeO sub(2) catalyst with MoO sub(3) loading amount of 5 wt.% and calcination temperature of 500 degree C exhibits the highest activity for CO conversion.