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Effects of Gel Preparation Conditions on the Crystallization of SAPO-11 Molecular Sieves

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Abstract

Using a combination of XRD, 27Al and 31P MAS NMR, SEM, TEM, N2 low-temperature adsorption–desorption, and IR spectroscopy of adsorbed pyridine, the effects of gel preparation conditions on the properties of the SAPO-11 molecular sieves crystallized from the gels were investigated. It was demonstrated that the crystal morphology and the characteristics of secondary pores of SAPO-11 molecular sieves can be controlled by adjusting the sequence in which the initial components are mixed during gel preparation. The synthesized micro–mesoporous SAPO-11 samples exhibited high selectivity in the hydroisomerization of n-hexadecane.

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Funding

The study was carried out with financial support from the Russian Science Foundation (RSF Grant No. 23-73-10153, https://rscf.ru/project/23-73-10153).

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Authors and Affiliations

  1. Institute of Petroleum Chemistry and Catalysis, Ufa Federal Research Center, Russian Academy of Sciences (IPC RAS), 450075, Ufa, Russia

    M. R. Agliullin, D. V. Serebrennikov, A. N. Khazipova, R. Z. Kuvatova & B. I. Kutepov

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  1. M. R. Agliullin
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  2. D. V. Serebrennikov
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  3. A. N. Khazipova
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  4. R. Z. Kuvatova
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  5. B. I. Kutepov
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Correspondence to M. R. Agliullin or D. V. Serebrennikov.

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Agliullin, M.R., Serebrennikov, D.V., Khazipova, A.N. et al. Effects of Gel Preparation Conditions on the Crystallization of SAPO-11 Molecular Sieves. Pet. Chem. (2024). https://doi.org/10.1134/S0965544124010092

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