Abstract
The activity and stability of aluminum-palladium catalysts in the hydrogenation of aromatic hydrocarbons mixed with thiophene were studied. The catalysts were obtained by impregnation of γ-A2O3 with aqueous solutions of salts of palladium complexes. Preliminary sulfiding followed by oxidative activation of Pd/Al2O3 catalysts were found to favor the formation of such palladium state on the surface at which the hydrogenation of aromatic hydrocarbons in the presence of sulfur-containing impurities proceeds without a noticeable change in the activity with time. IR spectroscopy showed that the palladium metal surface fragments forming CO complexes with a characteristic absorption band at 1998 cm–1 are resistant to poisoning with sulfur-containing compounds in the hydrogenation of aromatic hydrocarbons.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2786—2790, December, 2015.
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Tarasov, A.L., Malova, O.V. & Lishchiner, I.I. Hydrogenation of aromatic hydrocarbons in a mixture with thiophene on sulfided Pd/Al2O3 catalysts. Russ Chem Bull 64, 2786–2790 (2015). https://doi.org/10.1007/s11172-015-1226-6
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DOI: https://doi.org/10.1007/s11172-015-1226-6