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Effect of the zeolite modulus of Pt/MOR/Al2O3 catalysts on the n-heptane isomerization reaction

  • Catalysis in Petroleum Refining Industry
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Abstract

The effect of the mordenite acidic modulus (SiO2/Al2O3, 20 and 30) of Pt/MOR/Al2O3 catalysts on the heptane isomerization reaction is investigated. The content of zeolite in the catalysts is varied from 10 to 50 wt %, with platinum applied to the samples from solutions of different precursors: H2PtCl6 and [Pt(NH3)4]Cl2. It is established via the TPD of ammonia and FTIR spectroscopy (the adsorption of NH3 and СО) that the total acidity of zeolite falls as the modulus grows: the number of Brønsted (BAC) and Lewis (LAC) acidic sites is reduced, accompanied by an increase in the strength of their acidity. The catalysts are tested in the n-heptane isomerization reaction. It is shown that the selectivity of n-heptane isomerization falls substantially when the acidic mordenite modulus is increased from 20 to 30.

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Authors and Affiliations

  1. Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences, Omsk, 644040, Russia

    M. D. Smolikov, V. A. Shkurenok, S. S. Yablokova, D. I. Kir’yanov, V. P. Doronin, T. P. Sorokina, L. I. Bikmetova, T. I. Gulyaeva & A. S. Belyi

  2. Omsk State Technical University, Omsk, 644050, Russia

    M. D. Smolikov & A. S. Belyi

  3. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    E. A. Paukshtis

Authors
  1. M. D. Smolikov
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  2. V. A. Shkurenok
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  3. S. S. Yablokova
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  4. D. I. Kir’yanov
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  5. V. P. Doronin
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  6. T. P. Sorokina
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  7. L. I. Bikmetova
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  8. T. I. Gulyaeva
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  9. E. A. Paukshtis
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  10. A. S. Belyi
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Corresponding author

Correspondence to M. D. Smolikov.

Additional information

Original Russian Text © M.D. Smolikov, V.A. Shkurenok, S.S. Yablokova, D.I. Kir’yanov, V.P. Doronin, T.P. Sorokina, L.I. Bikmetova, T.I. Gulyaeva, E.A. Paukshtis, A.S. Belyi, 2016, published in Kataliz v Promyshlennosti.

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Smolikov, M.D., Shkurenok, V.A., Yablokova, S.S. et al. Effect of the zeolite modulus of Pt/MOR/Al2O3 catalysts on the n-heptane isomerization reaction. Catal. Ind. 8, 121–127 (2016). https://doi.org/10.1134/S2070050416020112

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  • DOI: https://doi.org/10.1134/S2070050416020112

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