CO and CO2 methanation over supported Ni catalysts

Thien An Le, Min Sik Kim, Sae Ha Lee, Tae Wook Kim, Eun Duck Park

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260 Scopus citations

Abstract

CO and CO2 methanation was investigated over Ni catalysts supported on different supports such as γ-Al2O3, SiO2, TiO2, CeO2, and ZrO2. Among them, Ni/CeO2 was determined to be the most active for CO and CO2 methanation. These catalytic activities increased with increasing surface area of CeO2. To increase the specific catalytic activity for CO and CO2 methanation, various Ni-CeO2 catalysts with different Ni contents were prepared using co-precipitation method. The optimum Ni content was determined for both reactions. The prepared catalysts were characterized with inductively coupled plasma-atomic emission spectroscopy, N2 physisorption, temperature-programmed reduction, temperature-programmed desorption, and X-ray diffraction. The high Ni dispersion and strong CO2 adsorption appeared to be responsible for the high catalytic activity for CO and CO2 methanation. This Ni-CeO2 can be applied to the low-temperature CO and CO2 methanation reactor to achieve high single-pass conversions of CO and CO2.

Original languageEnglish
Pages (from-to)89-96
Number of pages8
JournalCatalysis Today
Volume293-294
DOIs
StatePublished - 2017

Keywords

  • CeO
  • CO Methanation
  • CO Methanation
  • Ni catalyst
  • Support effect

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