Hemicellulose hydrolysis and hydrolytic hydrogenation over proton- and metal modified beta zeolites

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Laura Faba, Bright T. Kusema, Elena V. Murzina, Anton Tokarev, Narendra Kumar, Annika Smeds, Eva Díaz, Salvador Ordóñez, Päivi Mäki-Arvela, Stefan Willför, Tapio Salmi, Dmitry Yu Murzin
Publisher: ELSEVIER SCIENCE BV
Publication year: 2014
Journal: Microporous and Mesoporous Materials
Journal acronym: MICROPOR MESOPOR MAT
Volume number: 189
Start page: 189
End page: 199
Number of pages: 11
ISSN: 1387-1811
eISSN: 1873-3093


Abstract

The hydrolytic hydrogenation of hemicellulose arabinogalactan using different beta zeolites as catalysts was studied in this work. The use of bifunctional Ru/beta zeolite catalysts leads to formation of valuable polyols (galactitol, arabitol) from hemicellulose. The presence of acid sites enhances hydrolysis of the hemicelluloses into sugars in addition to homogeneous hydrolysis while the Ru catalyzes further hydrogenation into polyols. Using bifunctional catalysts the stability of these polyols can be also enhanced because the side reactions to HMF and furfural were minimized, however formation of high molecular weight compounds (aggregates of sugars and humins) was still quite substantial.


Keywords

Arabinogalactan, Beta zeolites, Bifunctional catalysis, Biomass upgrading, Hydrolysis

Last updated on 2019-15-10 at 03:04