Activity of palladium sulfide catalysts in the reaction of gas-phase hydrogenation of 2-methylthiophene |
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Authors: | A V Mashkina A A Zirka |
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Institution: | (1) Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090 Novosibirsk, Russia |
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Abstract: | In the interaction of hydrogen with 2-methylthiophene in the gas phase over palladium sulfide catalysts at 180–260?C and 0.1–0.8 MPa, the saturation of the thiophene ring resulting in 2-methylthiolane and the hydrogenolysis of 2-methylthiophene occurs. When the conversion is lower than 60%, these reactions occur independently; at higher conversions, methylthiolane also undergoes hydrogenolysis. The specific catalytic activity of PdS supported on γ-Al2O3, TiO2, and carbon and without support is much lower in the hydrogenation of 2-methylthiophene than the activity of PdS supported on SiO2, aluminosilicate, and zeolite HNaY having strong Brönsted acid surface sites. |
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