Separation performance of novel vinyltriethoxysilane (VTES)-g-silicalite-1/PDMS/PAN thin-film composite membrane in the recovery of bioethanol from fermentation broths by pervaporation

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	Separation performance of novel vinyltriethoxysilane (VTES)-g-silicalite-1/PDMS/PAN thin-film composite membrane in the recovery of bioethanol from fermentation broths by pervaporation
	Yi, Shouliang 1,2; Wan, Yinhua 1
刊名	JOURNAL OF MEMBRANE SCIENCE
	2017-02-15
卷号	524 页码:132-140
关键词	Pervaporation Vinyltriethoxysilane (VTES) Polydimethylsiloxane Fermentation Yeast cell
ISSN号	0376-7388
英文摘要	Organophilic pervaporation (OPV) has been considered as one of the most promising separation processes for the recovery of biofuels from fermentation broths, however, in addition to preferred target product liquid biofuels, the yeast cells and fermentation nutrients could affect the recovery efficiency of biofuels from broths by pervaporation. In this paper, the influence of the yeast cells and the fermentation nutrient components such as the sources of carbon, nitrogen and salts on the separation performance of the vinyltriethoxysilane (VTES)grafted- (VTES-g-) silicalite-1/PDMS/PAN thin-film composite membrane was conducted systematically. The results revealed that glucose, xylose, protein, and salts cannot permeate through the membrane. Glucose concentration in the fermentation broth should be kept at a lower level (less than 20 g/L) to eliminate its deleterious influence on ethanol flux and membrane selectivity. Xylose and corn steep liquor (CSL) have little effect on the pervaporation performance of the composite membrane. The addition of NaCI improved the membrane selectivity and ethanol flux but slightly lowered down total permeation flux. Adding dry yeast cells to the ethanol solution can enhance the turbulence in the feed mixtures, resulting an increase of the membrane flux and selectivity. The pervaporation performance of fermentation broths was also studied. The results showed that the nutrients and the deposition of yeast cells on the membrane surface didn't deteriorate the pervaporation performance, indicating excellent fouling resistance of the novel VTES-g-silicalite-1/PDMS/ PAN composite membrane in operation with fermentation broths. The continuous ethanol fermentation can be directly connected to the in-situ pervaporative recovery system without requiring prior removal of yeast cells.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Chemical ; Polymer Science
研究领域[WOS]	Engineering ; Polymer Science
关键词[WOS]	ETHANOL-PRODUCTION ; SACCHAROMYCES-CEREVISIAE ; SILICALITE MEMBRANES ; AQUEOUS-SOLUTION ; LIQUID-MIXTURES ; BY-PRODUCTS ; BIO-ETHANOL ; SELECTIVITY ; BUTANOL ; SUGARS
收录类别	SCI
语种	英语
WOS记录号	WOS:000392769000015
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/21901]
专题	过程工程研究所_生化工程国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA
推荐引用方式 GB/T 7714	Yi, Shouliang,Wan, Yinhua. Separation performance of novel vinyltriethoxysilane (VTES)-g-silicalite-1/PDMS/PAN thin-film composite membrane in the recovery of bioethanol from fermentation broths by pervaporation[J]. JOURNAL OF MEMBRANE SCIENCE,2017,524:132-140.
APA	Yi, Shouliang,&Wan, Yinhua.(2017).Separation performance of novel vinyltriethoxysilane (VTES)-g-silicalite-1/PDMS/PAN thin-film composite membrane in the recovery of bioethanol from fermentation broths by pervaporation.JOURNAL OF MEMBRANE SCIENCE,524,132-140.
MLA	Yi, Shouliang,et al."Separation performance of novel vinyltriethoxysilane (VTES)-g-silicalite-1/PDMS/PAN thin-film composite membrane in the recovery of bioethanol from fermentation broths by pervaporation".JOURNAL OF MEMBRANE SCIENCE 524(2017):132-140.