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Effect of Cu promoter and alumina phases on Pt/Al2O3 for propane dehydrogenation

  • Catalysis, Reaction Engineering
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Abstract

We investigated the effects of different Cu weight ratio on θ or γ-Al2O3 which were impregnated with platinum in terms of catalytic activity for propane dehydrogenation and physicochemical properties. 1.5 wt% Pt, 0-10 wt% Cu catalyst supported on θ-Al2O3 or γ-Al2O3 was prepared by incipient wetness co-impregnation. Enhanced Pt dispersion by increasing Cu contents in γ-Al2O3 supported catalyst was confirmed via XRD and XPS. Pt and CuO was separated in Pt-Cu/θ-Al2O3, but Pt-Cu alloy was identified after reduction treatment. Also, adding Cu in Pt/Al2O3 makes catalyst’s acidity lower and this property led to increased propylene yield in propane dehydrogenation. However, Pt3Cu was not good for yield of PDH, which was confirmed in Pt-10Cu/θ-Al2O3 through XRD.

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Authors and Affiliations

  1. Department of Chemical Engineering, RCCT, Hankyong National University, Anseong, 17579, Korea

    Hakbeum Lee & Hyoung Lim Koh

  2. Hyosung R&D Labs., 74 Simin-daero, Dongan-gu, Anyang-Si, Gyunggi-do, 431-080, Korea

    Won-Il Kim

  3. Clean Energy Research Center, Korea Institute of Science and Technology, Cheongryang, P. O. Box 131, Seoul, 02792, Korea

    Kwang-Deog Jung

Authors
  1. Hakbeum Lee
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  2. Won-Il Kim
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  3. Kwang-Deog Jung
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  4. Hyoung Lim Koh
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Correspondence to Hyoung Lim Koh.

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Lee, H., Kim, WI., Jung, KD. et al. Effect of Cu promoter and alumina phases on Pt/Al2O3 for propane dehydrogenation. Korean J. Chem. Eng. 34, 1337–1345 (2017). https://doi.org/10.1007/s11814-017-0020-6

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  • DOI: https://doi.org/10.1007/s11814-017-0020-6

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