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<p>It is shown that an increase in the BEA zeolite dealumination degree in the composition of NiBEA catalysts leads to an increase in the conversion of methane and carbon dioxide in the process of dry reforming of methane. The activity of catalysts increases with a decrease in the ratio of acid/basic sites. CO<sub>2</sub> is activated at basic sites during both the conversion of methane to carbon dioxide and in the accompanying reverse water-gas shift reaction. Changing the Si/Al ratio is an effective tool for regulating the activity and selectivity of NiBEA catalysts, thus providing the obtaining of synthesis gas with different CO/H<sub>2</sub> ratios.</p>

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Influence of the Si/Al Ratio in Ni-Containing BEA Zeolites on their Catalytic Properties in the Dry Reforming of Methane

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • S. O. Soloviev,
  • P. I. Kuriyenko,
  • N. V. Vlasenko,
  • Ya. P. Kurylets,
  • I. M. Remezovsky

摘要

It is shown that an increase in the BEA zeolite dealumination degree in the composition of NiBEA catalysts leads to an increase in the conversion of methane and carbon dioxide in the process of dry reforming of methane. The activity of catalysts increases with a decrease in the ratio of acid/basic sites. CO2 is activated at basic sites during both the conversion of methane to carbon dioxide and in the accompanying reverse water-gas shift reaction. Changing the Si/Al ratio is an effective tool for regulating the activity and selectivity of NiBEA catalysts, thus providing the obtaining of synthesis gas with different CO/H2 ratios.