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Production of isobutylene from acetone over micro–mesoporous catalysts

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Abstract

The production of isobutylene from acetone over micro–mesoporous catalysts with different mesopore contents, which have been prepared using hydrothermal recrystallization of mordenite (MOR) zeolite modified with cesium acetate by incipient wetness impregnation, has been studied. It has been shown that cesium is inserted into the cation positions during the modification, at the same time the number of Brønsted acid sites in the samples decreased. It has been found that an increase in the content of mesopores in the catalyst leads to an increase in the initial rates of acetone conversion and isobutylene formation as a result of removing diffusion limitations. Brønsted acid sites have been shown to be preferable for the selective production of isobutylene from acetone. Micro–mesoporous materials operate more stably as compared to microporous materials.

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Authors and Affiliations

  1. Faculty of Chemistry, Moscow State University, Moscow, Russia

    O. A. Ponomareva, A. A. Mal’tseva, A. A. Maerle, L. I. Rodionova, I. V. Dobryakova, M. V. Belova & I. I. Ivanova

  2. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia

    O. A. Ponomareva, V. S. Pavlov & I. I. Ivanova

Authors
  1. O. A. Ponomareva
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  2. A. A. Mal’tseva
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  3. A. A. Maerle
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  4. L. I. Rodionova
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  5. V. S. Pavlov
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  6. I. V. Dobryakova
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  7. M. V. Belova
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  8. I. I. Ivanova
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Corresponding author

Correspondence to O. A. Ponomareva.

Additional information

Original Russian Text © O.A. Ponomareva, A.A. Mal’tseva, A.A. Maerle, L.I. Rodionova, V.S. Pavlov, I.V. Dobryakova, M.V. Belova, I.I. Ivanova, 2016, published in Neftekhimiya, 2016, Vol. 56, No. 3, pp. 271–276.

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Ponomareva, O.A., Mal’tseva, A.A., Maerle, A.A. et al. Production of isobutylene from acetone over micro–mesoporous catalysts. Pet. Chem. 56, 253–258 (2016). https://doi.org/10.1134/S0965544116030075

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  • DOI: https://doi.org/10.1134/S0965544116030075

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