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Selective production of furfuryl alcohol via gas phase hydrogenation of furfural over Au/Al2O3

Paper ID Volume ID Publish Year Pages File Format Full-Text
49363 46740 2015 4 PDF Available
Title
Selective production of furfuryl alcohol via gas phase hydrogenation of furfural over Au/Al2O3
Abstract

•Exclusive hydrogenation of furfural to furfuryl alcohol over Au/Al2O3•∆Eact for furfuryl alcohol production under catalytic control is 45 kJ mol− 1.•Hydrogenolysis (to 2-methylfuran) circumvented by reaction at T < 473 K•Au/Al2O3 delivered significantly higher TOF than benchmark supported Cu.

We report exclusive continuous gas phase hydrogenation of furfural to furfuryl alcohol over Au/Al2O3 (∆Ea = 45 kJ mol− 1). Characterisation measurements demonstrate the formation of Auδ − (from XPS analysis) nanoparticles (1–8 nm, mean = 4.3 nm) with H2 chemisorption capacity of 318 μmol gAu− 1 (at 413 K). Chemical kinetic control was established by experimental variation of contact time, catalyst/furfural feed ratio and temperature. At T ≥ 473 K, hydrogenolysis to 2-methylfuran predominated. Selective TOF (298 h− 1 at 433 K) over Au/Al2O3 exceeded values reported for benchmark Cu catalysts at higher temperature (453–498 K).

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Keywords
Gas phase selective hydrogenation; Furfural; Furfuryl alcohol; Au/Al2O3
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Selective production of furfuryl alcohol via gas phase hydrogenation of furfural over Au/Al2O3
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 69, 5 September 2015, Pages 119–122
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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