Pt/BEA–Al2O3 catalysts for the isomerization of benzene/heptane mixtures. I: Optimizing the support’s composition
- Authors: Belopukhov E.A.1,2, Kalashnikov I.M.1,2, Smolikov M.D.1,2, Kir’yanov D.I.1, Gulyaeva T.I.1, Belyi A.S.1,2
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Affiliations:
- Institute of Hydrocarbons Processing, Siberian Branch
- Omsk State Technical University
- Issue: Vol 9, No 1 (2017)
- Pages: 48-53
- Section: Domestic Catalysts
- URL: https://journal-vniispk.ru/2070-0504/article/view/202430
- DOI: https://doi.org/10.1134/S2070050417010032
- ID: 202430
Cite item
Abstract
Pt/BEA–Al2O3 catalysts for the hydroisomerization of benzene-containing gasoline fractions are studied using a model feedstock (20% benzene and 80% n-heptane). The catalysts are prepared by varying the zeolite content from 5 to 70 wt % at a constant Pt loading of 0.3 wt % in all samples, with an aqueous H2PtCl6 solution being used as the Pt precursor. The acid properties of the samples are studied by means of temperature-programmed desorption (TPD). The effect of the support’s zeolite/binder ratio on the activity of the catalysts is determined: an increase in the zeolite content raises the system’s acidity and shifts the range of the reaction toward lower temperatures. The optimum zeolite/binder ratio is found to be 30% BEA/70% Al2O3. Changing the SiO2/Al2O3 ratio of the zeolite from 25 to 40 is shown to have no noticeable effect on catalyst activity. The use of the catalysts supported on 30% BEA/70% Al2O3 in the hydroisomerization of benzenecontaining gasoline fractions can be recommended for improving environmental performance.
About the authors
E. A. Belopukhov
Institute of Hydrocarbons Processing, Siberian Branch; Omsk State Technical University
Author for correspondence.
Email: eugebel@ihcp.ru
Russian Federation, Omsk, 644040; Omsk, 644050
I. M. Kalashnikov
Institute of Hydrocarbons Processing, Siberian Branch; Omsk State Technical University
Email: eugebel@ihcp.ru
Russian Federation, Omsk, 644040; Omsk, 644050
M. D. Smolikov
Institute of Hydrocarbons Processing, Siberian Branch; Omsk State Technical University
Email: eugebel@ihcp.ru
Russian Federation, Omsk, 644040; Omsk, 644050
D. I. Kir’yanov
Institute of Hydrocarbons Processing, Siberian Branch
Email: eugebel@ihcp.ru
Russian Federation, Omsk, 644040
T. I. Gulyaeva
Institute of Hydrocarbons Processing, Siberian Branch
Email: eugebel@ihcp.ru
Russian Federation, Omsk, 644040
A. S. Belyi
Institute of Hydrocarbons Processing, Siberian Branch; Omsk State Technical University
Email: eugebel@ihcp.ru
Russian Federation, Omsk, 644040; Omsk, 644050
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