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Lizasoain, J; Trulea, A; Gittinger, J; Kral, I; Piringer, G; Schedl, A; Nilsen, PJ; Potthast, A; Gronauer, A; Bauer, A.
(2017): Corn stover for biogas production: Effect of steam explosion pretreatment on the gas yields and on the biodegradation kinetics of the primary structural compounds
BIORESOURCE TECHNOL. 2017; 244: 949-956. FullText FullText_BOKU

Abstract:
This study evaluated the effect of steam explosion on the chemical composition and biomethane potential of corn stover using temperatures ranging between 140 and 220 degrees C and pretreatment times ranging between 2 and 15 min. Biodegradation kinetics during the anaerobic digestion of untreated and corn stover, pretreated at two different intensities, 140 degrees C for 5 min and 180 degrees C for 5 min, were studied in tandem. Results showed that pretreatment at 160 degrees C for 2 min improved the methane yield by 22%. Harsher pretreatment conditions led to lower hemicellulose contents and methane yields, as well as higher lignin contents, which may be due to the formation of pseudo-lignin. The biodegradation kinetics trial demonstrated that steam explosion enhances the degradation of structural carbohydrates and acid insoluble lignin.
Authors BOKU Wien:
Bauer Alexander
Gittinger Johannes
Gronauer Andreas
Kral Iris
Lizasoain Arteaga Javier
Piringer Gerhard
Potthast Antje
Schedl Andreas
Trulea Adrian
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Find related publications in this database (Keywords)
Biomass
Agricultural residues
Maize straw
Biofuel
Anaerobic digestion


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