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

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: 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
Förläggare: ELSEVIER SCIENCE BV
Publiceringsår: 2014
Tidskrift: Microporous and Mesoporous Materials
Tidskriftsakronym: MICROPOR MESOPOR MAT
Volym: 189
Artikelns första sida, sidnummer: 189
Artikelns sista sida, sidnummer: 199
Antal sidor: 11
ISSN: 1387-1811
eISSN: 1873-3093


Abstrakt

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.


Nyckelord

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

Senast uppdaterad 2019-15-12 vid 03:03