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Dehydrocyclization of C6 Hydrocarbon With and Without Oxygen Containing Substituent Over Pt/(Na)-Al2O3 Catalyst

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Abstract

The presence of hydroxyl or keto functional group affects both activity and selectivity for dehydrocyclization of C6 hydrocarbon over Pt/(Na)–Al2O3 catalyst. Under similar reaction conditions, n-hexane produces benzene as the primary product (>40 %), whereas dehydration is a major reaction pathway for 2-hexanol and yields mainly hexenes (>70 %). However, 2-hexanone was found to be involved in a variety of reactions over Pt/(Na)–Al2O3 catalyst and produces lower hydrocarbons (C2–C5), 5-dodecanone, 2- and 5-nonanones, and 2-acetyl-3-propyl-2-cyclohexen-1-one. The presence of hydroxyl (–OH) or keto group (=C=O) at the C-2 position alters the interaction of C6 hydrocarbon with the catalyst surface which eventually controls the overall product selectivity.

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Acknowledgments

This work was supported by the Commonwealth of Kentucky.

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Authors and Affiliations

  1. Center for Applied Energy Research, University of Kentucky, 2540 Research Park Dr., Lexington, KY, 40511, USA

    Muthu Kumaran Gnanamani, Wilson D. Shafer, Robert A. Keogh & Burtron H. Davis

Authors
  1. Muthu Kumaran Gnanamani
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  2. Wilson D. Shafer
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  3. Robert A. Keogh
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  4. Burtron H. Davis
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Correspondence to Burtron H. Davis.

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Gnanamani, M.K., Shafer, W.D., Keogh, R.A. et al. Dehydrocyclization of C6 Hydrocarbon With and Without Oxygen Containing Substituent Over Pt/(Na)-Al2O3 Catalyst. Catal Lett 146, 424–432 (2016). https://doi.org/10.1007/s10562-015-1643-z

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  • DOI: https://doi.org/10.1007/s10562-015-1643-z

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