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Two-step autohydrolysis pretreatment: towards high selective full fractionation of wheat straw
Citation Link: https://doi.org/10.15480/882.3044
Publikationstyp
Journal Article
Date Issued
2020-09-01
Sprache
English
Author(s)
Conrad, Marc
Institut
TORE-DOI
TORE-URI
Journal
Volume
92
Issue
11
Start Page
1723
End Page
1732
Citation
Chemie-Ingenieur-Technik 92 (11): 1723-1732 (2020-11-01)
Publisher DOI
Scopus ID
Publisher
Wiley-VCH Verl.
Pretreatment is necessary to increase the enzymatic digestibility of lignocellulosic biomass. Here, degradation reactions of solubilized pentoses to furfural and others are undesired regarding the reduced product yield and increasing downstream processing efforts. In this work, the use of the unit operation configuration was successfully shown to reduce degradation reactions. In the used two-step autohydrolysis pretreatment, the reaction is stopped before degradation takes place. The pentoses are removed by water leaching to make them unavailable for degradation in a second autohydrolysis treatment. The overall sugars yield is increased, and the furfural formation is decreasing while maintaining the high lignin purity using the two-step autohydrolysis pretreatment.
Subjects
Autohydrolysis pretreatment
Avoid degradation reactions
Full fractionation
Pentose yield
Two-step autohydrolysis
DDC Class
540: Chemie
600: Technik
Publication version
publishedVersion
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