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Influence of Acid Modification on Selective Phenol Hydrogenation Over Pd/Activated Carbon Catalysts

Abstract

The influence of the acid treatment on cyclohexanone selectivity of phenol hydrogenation over Pd on active carbon was studied in liquid phase reaction and by temperature-programmed desorption. Acid treatment of activated carbon led to an increased cyclohexanone/cyclohexanol ratio. Acid modification of the carbon support enriched the electron density of Pd, and enhanced the desorption of the phenoxy species, which resulted in improved cyclohexanone selectivity in phenol hydrogenation.

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Acknowledgements

The authors would like to thank Mr. Jimmy Thorn and Mr. Jason Carson for technical support and discussion.

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Correspondence to Shingo Watanabe.

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Watanabe, S., Arunajatesan, V. Influence of Acid Modification on Selective Phenol Hydrogenation Over Pd/Activated Carbon Catalysts. Top Catal 53, 1150–1152 (2010). https://doi.org/10.1007/s11244-010-9551-3

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Keywords

  • Phenol
  • Cyclohexanone
  • Selective hydrogenation
  • Activated carbon
  • Acid modification
  • Temperature-programmed desorption
  • Palladium