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Thermal‐Enzymatic Hydrolysis of Wheat Straw in a Single High Pressure Fixed Bed
Author(s) -
Reynolds Wienke,
Kirsch Christian,
Smirnova Irina
Publication year - 2015
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201400192
Subject(s) - enzymatic hydrolysis , cellulose , straw , lignin , hydrolysis , chemistry , chromatography , cellulase , chemical engineering , materials science , organic chemistry , inorganic chemistry , engineering
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.