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Increased efficiency of butanol production from spent sulfite liquor by removal of fermentation inhibitors
He, Qin; Chen, Hongzhang
2020-08-01
Source PublicationJOURNAL OF CLEANER PRODUCTION
ISSN0959-6526
Volume263Pages:9
AbstractIn this work, spent sulfite liquor (SSL) was used to produce butanol after two-levels of inhibitors removal. SSL component analysis was conducted, and the results showed that SSL contained a large proportion of pentose, hexose, lignosulfonates and other inhibitors. Based on the integrated biorefinery concept, three utilization routes were proposed employing the coupling of nanofiltration and ultrafiltration techniques. The route that uses nanofiltration to separate sugars for fermentation and lignosulfonates for further fractionation using ultrafiltration was chosen in this study. A 200-Da nanofiltration membrane was used and resulted in a recovery of 83.20% of lignosulfonates and a loss of 19.14% sugars. Nanofiltration permeate started to produce 14.32 g/L ethanol, but only 0.25 g/L butanol was observed in the acetone-butanol-ethanol (ABE) fermentation, indicating that the fermentation inhibition still existed. After the removal of second-level inhibitors through decolorization and ion exchange, an improved ABE production from SSL was achieved compared with its control test of commercial sugar mixture without inhibitors (12.96 versus 12.65 g/L butanol, and 21.09 versus 20.38 g/L ABE). Meanwhile, the fermentation inhibitors of SSL were thoroughly removed. This study provides a sustainable approach to produce value-added products from wastewater, and can reduce environmental pollution and save capital. (C) 2020 Elsevier Ltd. All rights reserved.
KeywordSpent sulfite liquor Butanol fermentation Inhibitor removal Integrated biorefinery Integrated membrane separation system Fractionation
DOI10.1016/j.jclepro.2020.121356
Language英语
WOS KeywordETHANOL-PRODUCTION ; XYLOSE FERMENTATION ; LIGNIN ; ULTRAFILTRATION ; PRETREATMENT ; PULP ; FRACTIONATION ; HYDROLYSATE ; PERFORMANCE ; MEMBRANES
Funding ProjectNational Key Research and Development Program of China[2018YFB1501702] ; Transformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sciences)[XDA 21060300] ; National Natural Science Foundation of China[31871782] ; China Scholarship Council (CSC)[201906855018]
WOS Research AreaScience & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
Funding OrganizationNational Key Research and Development Program of China ; Transformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sciences) ; National Natural Science Foundation of China ; China Scholarship Council (CSC)
WOS IDWOS:000543468400013
PublisherELSEVIER SCI LTD
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41331
Collection中国科学院过程工程研究所
Corresponding AuthorChen, Hongzhang
AffiliationChinese Acad Sci, Inst Proc Engn, Beijing Key Lab Biomass Refining Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
He, Qin,Chen, Hongzhang. Increased efficiency of butanol production from spent sulfite liquor by removal of fermentation inhibitors[J]. JOURNAL OF CLEANER PRODUCTION,2020,263:9.
APA He, Qin,&Chen, Hongzhang.(2020).Increased efficiency of butanol production from spent sulfite liquor by removal of fermentation inhibitors.JOURNAL OF CLEANER PRODUCTION,263,9.
MLA He, Qin,et al."Increased efficiency of butanol production from spent sulfite liquor by removal of fermentation inhibitors".JOURNAL OF CLEANER PRODUCTION 263(2020):9.
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