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<p>It has been established that during the biogas reforming process (CH<sub>4</sub>:CO<sub>2</sub> &gt; 1) over Ni-Al<sub>2</sub>O<sub>3</sub>/cordierite catalysts modified with rare earth metal oxides (CeO<sub>2</sub>, La<sub>2</sub>O<sub>3</sub>) reactant activation occurs at different surface sites: CH<sub>4</sub> on Ni<sup>0</sup> and CO<sub>2</sub> on MeO<sub>x</sub> (Me = La, Ce). This allows to avoid the competition between CH<sub>4</sub> and CO<sub>2</sub> molecules for active surface sites, facilitating a stable process under methane excess.</p>

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Effect of Rare Earth Metal Oxides (CeO2, La2O3) on the Properties of NI-AL2O3 Catalysts for Biogas Reforming

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • S. O. Soloviev,
  • Ya.P. Kurilets,
  • D. Yu. Balakin,
  • Y. M. Nychiporuk

摘要

It has been established that during the biogas reforming process (CH4:CO2 > 1) over Ni-Al2O3/cordierite catalysts modified with rare earth metal oxides (CeO2, La2O3) reactant activation occurs at different surface sites: CH4 on Ni0 and CO2 on MeOx (Me = La, Ce). This allows to avoid the competition between CH4 and CO2 molecules for active surface sites, facilitating a stable process under methane excess.