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Thermal-enzymatic hydrolysis of wheat straw in a single high pressure fixed bed
Publikationstyp
Journal Article
Publikationsdatum
2015-08-15
Sprache
English
Institut
TORE-URI
Enthalten in
Volume
87
Issue
10
Start Page
1305
End Page
1312
Citation
Chemie-Ingenieur-Technik 10 (87): 1305-1312 (2015)
Publisher DOI
Scopus ID
Publisher
Wiley-VCH Verl.
An integrated flow-through fixed-bed reactor concept for lignocellulose separation at 3 L scale is presented. Wheat straw is degraded using sequential liquid hot water treatment and enzymatic hydrolysis in a single-pot reactor setup. System responses on process parameters are modeled and optimized using response surface methodology. Accurate empiric models and significant factor influences could be identified for both treatment steps. With optimal factor settings, 23.9 and 49.2 wt % hot-water-soluble lignin and C5 oligomers could be recovered, respectively. 70.0 wt % cellulose solubilization could be achieved in the fixed-bed enzymatic hydrolysis after 72 hours. Wheat straw was degraded using liquid hot water and enzymatic hydrolysis. The sequential treatment was realized in a 3-L flow-through fixed-bed reactor. Both process steps were modeled separately using response surface methodology. Significant factor influences were identified and the treatment was optimized for maximum sugar recovery.
Schlagworte
Enzymatic hydrolysis
Fixed-bed
Lignocellulose
Liquid hot water
Response surface methodology
DDC Class
540: Chemie
600: Technik
More Funding Information
The authors are grateful to the German Federal Ministry of Education and Research (BMBF) for the financial support (031A233) in the context of the German project cluster BIOREFINERY2021.