Abstract
The effect of the tungsten oxide content (10–35 wt %) in Pt/WO3-ZrO2 catalysts on hydroisomerization of a heptane–benzene mixture (80 : 20, wt %) has been studied. The catalysts with 15–25 wt % WO3 are characterized by the highest fraction of the tetragonal phase of zirconia (t-ZrO2, 87–96%), which makes it possible to achieve the highest yield of the sum of heptane isomers, including high-octane di- and trimethyl-substituted isomers (DTMS; 69.4–76.7 and 24.5–27.9 wt %, respectively). In the presence of these catalysts, the yield of methylcyclopentane is 52.1–61.3 wt % at 72.6–90.9% selectivity of isomerization of cyclohexane to methylcyclopentane.
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Funding
This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis (project АААА-А21-121011890074-4). The phase composition of the catalysts was studied using facilities of the shared research center “National center of investigation of catalysts” at Boreskov Institute of Catalysis.
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Smolikov, M.D., Shkurenok, V.A., Kir’yanov, D.I. et al. Effect of Tungsten Oxide Content in Pt/WO3-ZrO2 Catalysts on the Performance Characteristics of the Heptane–Benzene Mixture Hydroisomerization Reaction. Catal. Ind. 13, 325–330 (2021). https://doi.org/10.1134/S2070050421040097
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DOI: https://doi.org/10.1134/S2070050421040097