Increased efficiency of butanol production from spent sulfite liquor by removal of fermentation inhibitors

doi:10.1016/j.jclepro.2020.121356

	Increased efficiency of butanol production from spent sulfite liquor by removal of fermentation inhibitors
	He, Qin; Chen, Hongzhang
刊名	JOURNAL OF CLEANER PRODUCTION
	2020-08-01
卷号	263 页码:9
关键词	Spent sulfite liquor Butanol fermentation Inhibitor removal Integrated biorefinery Integrated membrane separation system Fractionation
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2020.121356
英文摘要	In 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.
资助项目	National 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关键词	ETHANOL-PRODUCTION ; XYLOSE FERMENTATION ; LIGNIN ; ULTRAFILTRATION ; PRETREATMENT ; PULP ; FRACTIONATION ; HYDROLYSATE ; PERFORMANCE ; MEMBRANES
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000543468400013
资助机构	National 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)
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/41330]
专题	中国科学院过程工程研究所
通讯作者	Chen, Hongzhang
作者单位	Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Biomass Refining Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
推荐引用方式 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.