TY  - JOUR
AU  - Weidener, Dennis
AU  - Leitner, Walter
AU  - Domínguez de María, Pablo
AU  - Klose, Holger
AU  - Grande, Philipp
TI  - Lignocellulose fractionation using recyclable phosphoric acid: Lignin, cellulose and furfural production.
JO  - ChemSusChem
VL  - 14
IS  - 3
SN  - 1864-564X
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2020-04808
SP  - 909-916
PY  - 2021
AB  - The conversion of lignocellulose into its building blocks and their further transformation into valuable platform chemicals (e.g. furfural) are key technologies to move towards the use of renewable resources. This paper explores the disentanglement of lignocellulose into hemicellulose‐derived sugars, cellulose and lignin in a biphasic solvent system (water/2‑methyltetrahydrofuran) using phosphoric acid as recyclable catalyst. Integrated with the biomass fractionation, in a second step hemicellulose‐derived sugars – mainly xylose – are converted to furfural, which is in situ extracted into 2‑methyltetrahydrofuran with high selectivity (70 %) and yield (56 wt%). To further increase the economic feasibility of the process, a downstream and recycling strategy enables recovery of phosphoric acid without loss of process efficiency over four consecutive cycles. This outlines a more efficient and sustainable use of phosphoric acid as catalyst, as its inherent costs can be significantly lowered.
LB  - PUB:(DE-HGF)16
C6  - 33244874
UR  - <Go to ISI:>//WOS:000596881900001
DO  - DOI:10.1002/cssc.202002383
UR  - https://juser.fz-juelich.de/record/888282
ER  -