Journal
RUSSIAN JOURNAL OF APPLIED CHEMISTRY
Volume 92, Issue 8, Pages 1170-1178Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S1070427219080172
Keywords
nanoparticles; guaiacol; micro-mesoporous materials; hydrodeoxygenation; ruthenium
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Funding
- Ministry of Science and Higher Education of the Russian Federation [RFMEFI57717X0239]
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A ruthenium-containing catalyst on ZSM-5/MCM-41 micro-mesoporous aluminosilicate support was synthesized. The micro-mesoporous support and supported catalyst were characterized by low-temperature nitrogen desorption/adsorption, temperature-programmed ammonia desorption, transmission electron microscopy, X-ray photoelectron spectroscopy, temperature-programmed reduction with hydrogen, and energy-dispersive X-ray fluorescence analysis. Ru/ZSM-5/MCM-41 has high specific surface area (392 m(2) g(-1)) and high acidity (1087 mu mol g(-1)); the mean ruthenium particle size is 1.7 nm. The catalyst was studied in hydrodeoxygenation of a modelbio-oil compound, guaiacol, in the presence of water at a hydrogen pressure of 5 MPa and temperatures in the interval 130-290 degrees C. The catalyst obtained exhibits high activity in guaiacol hydrodeoxygenation: The conversion was 90%, and the selectivity with respect to cycloalkanes was 64% in 3-h reaction performed at a hydrogen pressure of 5 MPa and a temperature of 230 degrees C.
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