Aqua-Phase Catalytic Hydrogenation of Furfurol in the Presence of Pd/Sibunit Catalysts
R. M. MIRONENKO1,2, O. B. BELSKAYA1,3, A. V. LAVRENOV1, V. A. LIKHOLOBOV1,4
1Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences, Ul. Neftezаvodskаya 54, Omsk 644040 (Russia)
2Dostoevsky Omsk State University, Pr. Mira 55A, Omsk 644077 (Russia), Pr. Mira 55A, Omsk 644077 (Russia)
3Omsk State Technical University, Prospekt Mira 11, Omsk 644050 (Russia)
4Omsk Scientific Centre, Siberian Branch of the Russian Academy of Sciences, Prospekt Karla Marksa 15, Omsk 644024 (Russia)
Keywords: углеродные носители, палладиевые катализаторы, гидрирование фурфурола, фурфуриловый спирт, carbon supports, palladium catalysts, hydrogenation of furfurol, furfuryl alcohol
Abstract
Pd/Sibunit catalysts with palladium content 1 and 1.5 % were studied in aqua-phase hydrogenation of furfurol at different temperatures (323 and 363 K) and hydrogen pressure (0.5 and 2.0 MPa). The sample with palladium content 1.5 % exhibited activity in the studied reaction only at a temperature of 363 K. Under rigid reaction conditions (363 K, 2.0 MPa) the catalyst 1.5 % Pd/Sibunit has advantages over the samples based on carbon nanotubes (CNT) and technical-grade carbon (TC): it is more active than 1.5 % Pd/TC in furfurol transformation (transformation degree 96 %) and is highly selective (76 %) in the formation of furfuryl alcohol in comparison with 1.5 % Pd/CNT, with close degrees of furfurol transformation. A decrease in palladium content in the sample did not lead to worsening of the catalytic characteristics in the studied reaction under the most rigid reaction conditions. The degree of furfurol transformation on the sample 1 % Pd/Sibunit (91 %) turned out to be higher than that with the catalyst 1.5 % Pd/TC, while in the selectivity of the formation of furfuryl alcohol (77 %) it exceeded the sample 1.5 % Pd/CNT substantially.
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