Nickel catalysts supported on calcium titanate for enhanced CO methanation

Chunmiao Jia, Jiajian Gao, Jing Li, Fangna Gu*, Guangwen Xu, Ziyi Zhong, Fabing Su

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

Nickel catalysts supported on the perovskite oxide CaTiO3 (CTO) were prepared by an impregnation method for CO methanation to produce synthetic natural gas (SNG). X-Ray diffraction, nitrogen adsorption, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, H 2-temperature programmed reduction and desorption, and X-Ray photoelectron spectroscopy were employed for the characterization of samples. The results revealed that the Ni/CTO catalysts showed a better performance than Ni/Al2O3 for CO methanation at various reaction conditions. The life time test at 600 °C and 3.0 MPa indicates that Ni/CTO is also more active, thermally stable and resistant to carbon deposition. This is because of the relatively weak Ni-CTO support interaction, highly stable CTO support, the absence of acidic sites on the surface of CTO and the proper Ni particle size of about 20-30 nm. The work is important for the development of effective methanation catalysts for SNG production.

Original languageEnglish
Pages (from-to)490-499
Number of pages10
JournalCatalysis Science and Technology
Volume3
Issue number2
DOIs
StatePublished - Feb 2013
Externally publishedYes

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