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<p>Resource tests of the 0.3% Pd/C catalyst were carried out at a temperature of 300 °C, a contact time of 17 s, and a hydrogen/methyl ethyl ketone molar ratio of 1.25. No decrease in the technological parameters (methyl ethyl ketone conversion, 5-methyl-3-heptanone selectivity) was observed during 24 h of operation. According to the experimental results under the optimum conditions, the coupled methyl ethyl ketone condensation—hydrogenation process is characterized by external and internal diffusion limitations. The observed activation energy of 5-methyl-3-heptanone formation in the kinetic region was calculated.</p>

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Kinetics of the coupled condensation—hydrogenation of methyl ethyl ketone to 5-methyl-3-heptanone on the Pd/activated carbon catalyst

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • I. V. Lebedev,
  • E. M. Martsinkevich,
  • V. R. Flid,
  • L. G. Bruk

摘要

Resource tests of the 0.3% Pd/C catalyst were carried out at a temperature of 300 °C, a contact time of 17 s, and a hydrogen/methyl ethyl ketone molar ratio of 1.25. No decrease in the technological parameters (methyl ethyl ketone conversion, 5-methyl-3-heptanone selectivity) was observed during 24 h of operation. According to the experimental results under the optimum conditions, the coupled methyl ethyl ketone condensation—hydrogenation process is characterized by external and internal diffusion limitations. The observed activation energy of 5-methyl-3-heptanone formation in the kinetic region was calculated.