Abstract
The isomerization of n-heptane on BEA supported platinum catalysts with the addition of chlorine and fluorine as promoters was studied. The use of the halides decreased the operating temperature of the n-heptane conversion. The samples prepared at the stage of peptization showed an increase in the total conversion accompanied by a decrease in the yield of heptane isomers of 6 for chlorine and 27 wt.% for fluorine. Promotion by the halides at the stage of platinum application led to an increase in the catalyst activity without decrease in the selectivity values.
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Based on the materials of the XXI Mendeleev Congress on General and Applied Chemistry (September 9–13, 2019, St. Petersburg, Russia).
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1709–1713, September, 2020.
The authors are grateful to G. G. Savel’eva for studying the specific surface area of catalysts and to S. S. Yablokova and L. I. Frolova for determining the content of chloride ions in the catalyst.
This work was performed in the framework of the Russian state assignment of the BIC (Theme No. AAAA-A17-117021450095-1). The studies were carried out using the equipment of the Shared-Use Center “National Center for the Study of Catalysts” at the Boreskov Institute of Catalysis.
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Kalashnikov, I.M., Belopukhov, E.A., Smolikov, M.D. et al. Isomerization of n-heptane on platinum-zeolite catalysts promoted by chlorine and fluorine. Russ Chem Bull 69, 1709–1713 (2020). https://doi.org/10.1007/s11172-020-2952-y
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DOI: https://doi.org/10.1007/s11172-020-2952-y