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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, Shouliang1,2; Wan, Yinhua1
2017-02-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume524Pages:132-140
Abstract

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.

KeywordPervaporation Vinyltriethoxysilane (Vtes) Polydimethylsiloxane Fermentation Yeast Cell
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.metnsci.2016.11.037
Indexed BySCI
Language英语
WOS KeywordEthanol-production ; Saccharomyces-cerevisiae ; Silicalite Membranes ; Aqueous-solution ; Liquid-mixtures ; By-products ; Bio-ethanol ; Selectivity ; Butanol ; Sugars
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
Funding OrganizationNational High Technology Research and Development Program of China(2012AA021202) ; National Natural Science Foundation of China(21176239) ; Chinese Academy of Sciences' Key Deployment Project(KSZD-EW-2-017-3)
WOS IDWOS:000392769000015
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21901
Collection生化工程国家重点实验室
Affiliation1.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
Recommended Citation
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.
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