Abstract
The influence of ultrasonic treatment at various stages of modification of ZSM-5 zeolite with magnesium compounds has been studied to obtain a nanosized zeolite and increase the dispersion of the active element. It has been found that the use of sonication at various stages of magnesium incorporation into the zeolite structure alters the texture and acid properties of the catalyst. Using temperature-programmed ammonia desorption and diffuse reflectance infrared spectroscopy, it has been shown that the sonication leads to an increase in the proportion of Brønsted acid sites of medium strength.
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ACKNOWLEDGMENTS
This work was supported by the Federal Agency of Scientific Institutions of Russia within the framework of the State task to the Topchiev Institute of the Russian Academy of Sciences.
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Kolesnikova, E.E., Obukhova, T.K., Kolesnichenko, N.V. et al. Ultrasound-Assisted Modification of Zeolite Catalyst for Dimethyl Ether Conversion to Olefins with Magnesium Compounds. Pet. Chem. 58, 863–868 (2018). https://doi.org/10.1134/S0965544118100201
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DOI: https://doi.org/10.1134/S0965544118100201