Comparative study of single stage and two-stage pretreatments on corn stover: A kinetic assessment

The effects of two-stage pretreatment consisting of tepid water (first stage) and FeCl3 (second stage) pretreatments on hemicellulose hydrolysis were investigated. A kinetic comparison between the single stage (FeCl3-only pretreatment) and the two-stage pretreatment was evaluated. Compared with sing...

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Bibliographic Details
Published in:Bioresources 2022-02, Vol.17 (1), p.1257-1269
Main Authors: Liu, Chao, Zhang, Rui, Yu, Jingjie, Chang, Jing, Zhang, Wenjuan
Format: Article
Language:English
Subjects:
Catalysts
Cellulose
Comparative studies
Decomposition
Ferric chloride
Hemicellulose
Hydrolysis
Microorganisms
Pretreatment
Reaction time
Stover
Sugar
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Summary:The effects of two-stage pretreatment consisting of tepid water (first stage) and FeCl3 (second stage) pretreatments on hemicellulose hydrolysis were investigated. A kinetic comparison between the single stage (FeCl3-only pretreatment) and the two-stage pretreatment was evaluated. Compared with single stage pretreatment, the two-stage pretreatment decreased the activation energy Ea of hemicellulose hydrolysis by 38.3% and decreased the optimal reaction time by 34.8%. Besides, the xylose content increased by 14.9% and the catalyst dosage decreased by 31.9% in the two-stage pretreatment. This study provided an efficient pretreatment process for hemicellulose hydrolysis.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.17.1.1257-1269