Hydrodeoxygenation of vanillin over carbon supported metal catalysts

被引：76

作者：

Santos, J. L. ^{[1
]}

Alda-Onggar, M. ^{[2
]}

Fedorov, V. ^{[2
]}

Peurla, M. ^{[3
]}

Eranen, K. ^{[2
]}

Maki-Arvela, P. ^{[2
]}

Centeno, M. A. ^{[1
]}

Murzin, D. Yu. ^{[2
]}

机构：

[1] Univ Sevilla CSIC, Inst Ciencia Mat Sevilla, Dept Quim Inorgan, Americo Vespucio 49, Seville 41092, Spain

[2] Abo Akad Univ, Johan Gadolin Proc Chem Ctr, FI-20500 Turku, Finland

[3] Univ Turku, Turku, Finland

来源：

APPLIED CATALYSIS A-GENERAL | 2018年 / 561卷

关键词：

Vanillin; HDO; Supported metals; Carbon; NITROGEN-DOPED CARBON; SURFACE-ACIDITY; SELECTIVE HYDRODEOXYGENATION; ACTIVATED CARBON; MODEL COMPOUNDS; BIO-OIL; HYDROGENATION; NANOPARTICLES; RU; WATER;

D O I：

10.1016/j.apcata.2018.05.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Different carbon supported metal catalysts were synthesized, and characterized with various physico-chemical methods and tested in vanillin hydrodeoxygenation under 30 bar total pressure in water as a solvent at 100 degrees C. The catalysts exhibited high specific surface area and the metal dispersion decreased in following order: Pt/ C > Pd/C > Au/C > Rh/C > Ru/C. The most active catalyst was Pd/C followed by Ru/C. Vanillin hydrodeoxygenation proceeded via hydrogenation forming vanillyl alcohol further to its hydrogenolysis forming p-creosol. Both hydrogenation and hydrogenolysis were promoted by Pd/C, which exhibited rather high dispersion. The highest selectivity to p-creosol, 95% at complete vanillin conversion, was obtained with Pd/C. Kinetic modelling of vanillyl alcohol selectivity as a function of vanillin conversion was performed.

引用

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页码：137 / 149

页数：13

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