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Isomerization of n-Heptane in the Presence of Aromatic Hydrocarbons over Pt/MOR/Al2O3 and Pt/WO3/ZrO2 Catalysts

  • CATALYSIS IN PETROLEUM REFINING INDUSTRY
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Abstract

The effect of aromatic hydrocarbons (benzene, toluene) on the isomerization of n-heptane over Pt/MOR/Al2O3 and Pt/WO3/ZrO2 catalysts is studied. It is shown that the presence of aromatic hydrocarbons results in a need to raise the reaction temperature by 20–30°C to achieve n-heptane conversion at the same level as for individual n-heptane. It is established that the yield of heptane isomers falls in 1.5 times (from 60.1 to 39.9 wt %) during the isomerization of n-heptane mixed with aromatic hydrocarbons over Pt/MOR/Al2O3 catalyst and remains at the same level (60.4–68.0 wt %) over Pt/WO3/ZrO2 catalyst. The developed catalysts can be used in industry to isomerize the C7 fraction separated from straight-run and catalytic reforming gasolines. The presence of aromatic hydrocarbons in feedstocks is undesirable when Pt/MOR/Al2O3 catalyst is used, as it reduces the yield of isomers.

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ACKNOWLEDGMENTS

This work was carried out according to the state task of the IHP SB RAS, task V.46, project no. V.46.2.4.

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Authors and Affiliations

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

    M. D. Smolikov, V. A. Shkurenok, S.S. Yablokova, D. I. Kir’yanov & A. S. Belyi

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  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. A. S. Belyi
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Correspondence to M. D. Smolikov, V. A. Shkurenok, S.S. Yablokova, D. I. Kir’yanov or A. S. Belyi.

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Translated by E. Glushachenkova

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Smolikov, M.D., Shkurenok, V.A., Yablokova, S. et al. Isomerization of n-Heptane in the Presence of Aromatic Hydrocarbons over Pt/MOR/Al2O3 and Pt/WO3/ZrO2 Catalysts. Catal. Ind. 10, 222–227 (2018). https://doi.org/10.1134/S2070050418030108

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  • DOI: https://doi.org/10.1134/S2070050418030108

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