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@ARTICLE{Grande:826309,
author = {Grande, Philipp M. and Viell, Jörn and Theyssen, Nils and
Marquardt, Wolfgang and Domínguez de María, Pablo and
Leitner, Walter},
title = {{F}ractionation of lignocellulosic biomass using the
{O}rgano{C}at process},
journal = {Green chemistry},
volume = {17},
number = {6},
issn = {1463-9270},
address = {Cambridge},
publisher = {RSC},
reportid = {FZJ-2017-00542},
pages = {3533 - 3539},
year = {2015},
abstract = {The fractionation of lignocellulose in its three main
components, hemicellulose, lignin and cellulose pulp can be
achieved in a biphasic system comprising water and bio-based
2-methyltetrahydrofuran (2-MeTHF) as solvents and oxalic
acid as catalyst at mild temperatures (up to 140 °C). This
so-called OrganoCat concept relies on selective
hemicellulose depolymerization to form an aqueous stream of
the corresponding carbohydrates, whereas solid cellulose
pulp remains suspended and the disentangled lignin is to a
large extent extracted in situ with the organic phase. In
the present paper, it is demonstrated that biomass loadings
of 100 g L−1 can be efficiently fractionated within 3 h
whereby the mild conditions assure that no significant
amounts of by-products (e.g. furans) are formed. Removing
the solid pulp by filtration allows to re-use the water and
organic phase without product separation in repetitive batch
mode. In this way, (at least) 400 g L−1 biomass can be
processed in 4 cycles, leading to greatly improved
biomass-to-catalyst and biomass-to-solvent ratios. Economic
analysis of the process reveals that the improved biomass
loading significantly reduces capital and energy costs in
the solvent recycle, indicating the importance of process
integration for potential implementation. The procedure was
successfully scaled-up from the screening on bench scale to
3 L reactor. The feedstock flexibility was assessed for
biomasses containing moderate-to-high hemicellulose
content.},
cin = {VS-V},
ddc = {540},
cid = {I:(DE-Juel1)VS-V-20090406},
pnm = {899 - ohne Topic (POF3-899)},
pid = {G:(DE-HGF)POF3-899},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000355925900039},
doi = {10.1039/C4GC02534B},
url = {https://juser.fz-juelich.de/record/826309},
}