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Co‐production of biobutanol and biomethane from distillers' grain waste by an integrated process
Journal of chemical technology and biotechnology (1986), 2024-01, Vol.99 (1), p.40-49
Wang, Jiang‐Bo
Wang, Hao
Han, Jing‐Zhuo
Xu, Jian
Cheng, Run‐Xi
Hu, Fang
Wang, Zi‐Hao
Zhang, Rui‐Jing
Cai, Feng‐Jiao
2024
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Wang, Jiang‐Bo
Wang, Hao
Han, Jing‐Zhuo
Xu, Jian
Cheng, Run‐Xi
Hu, Fang
Wang, Zi‐Hao
Zhang, Rui‐Jing
Cai, Feng‐Jiao
Titel
Co‐production of biobutanol and biomethane from distillers' grain waste by an integrated process
Ist Teil von
Journal of chemical technology and biotechnology (1986), 2024-01, Vol.99 (1), p.40-49
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2024
Quelle
Wiley Blackwell Single Titles
Beschreibungen/Notizen
Background Distillers' grain waste (DGW) is the main by‐product in the Baijiu‐making process and its management remains a great challenge for the Baijiu industry. To address this issue, an integrated biobutanol and biomethane production process was established to obtain valuable products from DGW and reduce environmental pollution. Results In the integrated process, DGW was hydrolyzed and detoxified to produce biobutanol, while the distillery waste derived from solvent extraction process was used for biomethane fermentation. After the optimization of overliming detoxification of DGW hydrolysate by artificial neural network and genetic algorithm, totals of 10.65 ± 0.07 g L−1 butanol and 4.51 ± 0.21 g L−1 isopropanol were attained with negligible amounts of acetone and ethanol (i.e. 0.14 ± 0.00 and 0.52 ± 0.06 g L−1, respectively). Anaerobic digestion of the distillery waste was efficient, and the chemical oxygen demand removal rate approached 92.3 ± 0.1% with a methane yield of 167.8 ± 1.2 mL g−1 TCODremoved. Moreover, the anaerobic digestion effluent could be recycled as a potential substitute for process water in biobutanol fermentation without having any negative effect on enzymatic hydrolysis of DGW, and the butanol production also reached 8.19 ± 0.29 g L−1. Conclusion The present study provides a new idea for comprehensive utilization of DGW towards energy and resource recovery, without secondary pollution. © 2023 Society of Chemical Industry.
Sprache
Englisch
Identifikatoren
ISSN: 0268-2575
eISSN: 1097-4660
DOI: 10.1002/jctb.7509
Titel-ID: cdi_proquest_journals_2901357675
Format
–
Schlagworte
Anaerobic digestion
,
anaerobic digestion effluent
,
Anaerobic processes
,
Artificial neural networks
,
biobutanol
,
Biogas
,
biomethane
,
Butanol
,
Chemical oxygen demand
,
comprehensive utilization
,
Detoxification
,
Distilleries
,
distillers' grain waste
,
Ethanol
,
Fermentation
,
Genetic algorithms
,
Grain
,
Hydrolysates
,
Neural networks
,
Optimization
,
Pollution
,
Pollution control
,
Process water
,
Resource recovery
,
Solvent extraction
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