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An industrial level system with nonisothermal simultaneous solid state saccharification, fermentation and separation for ethanol production
Chen, Hongzhang1; Li, Guanhua1,2
2013-05-15
Source PublicationBIOCHEMICAL ENGINEERING JOURNAL
Volume74Issue:0Pages:121-126
AbstractTo alleviate the problems of low substrate loading, nonisothermal, end-product inhibition of ethanol during the simultaneous saccharification and fermentation, a nonisothermal simultaneous solid state saccharification, fermentation, and separation (NSSSFS) process was investigated; one novel pilot scale nonisothermal simultaneous solid state enzymatic saccharification and fermentation coupled with CO2 gas stripping loop system was invented and tested. The optimal pretreatment condition of steam-explosion was 1.5 MPa for 5 min in industrial level. In the NSSSFS, enzymatic saccharification and fermentation proceeded at around 50 degrees C and 37 degrees C, respectively, and were coupled together by the hydrolyzate loop; glucose from enzymatic saccharification was timely consumed by yeast, and the formed ethanol was separated online by CO2 gas stripping coupled with adsorption of activated carbon; the solids substrate loading reached 25%; ethanol yields from 18.96% to 30.29% were obtained in fermentation depending on the materials tested. Based on the pilot level of 300 L fermenter, a novel industrial-level of 110 m(3) solid state enzymatic saccharification, fermentation and ethanol separation plant had been successfully established and operated. The NSSSFS was a novel and feasible engineering solution to the inherent problems of simultaneous saccharification and fermentation, which would be used in large scale and in industrial production of ethanol. (C) 2013 Elsevier B.V. All rights reserved.
KeywordBioconversion Bioreactors Ethanol Noisothermal Solid State Enzymatic Saccharification Scale-up
SubtypeReview
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
Indexed BySCI
Language英语
WOS KeywordWHEAT-STRAW ; BIOETHANOL PRODUCTION ; ENZYMATIC-HYDROLYSIS ; PICHIA-STIPITIS ; CORN STOVER ; PRETREATMENT ; CONVERSION ; BAGASSE ; REACTOR
WOS Research AreaBiotechnology & Applied Microbiology ; Engineering
WOS SubjectBiotechnology & Applied Microbiology ; Engineering, Chemical
WOS IDWOS:000319308400018
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13697
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Chen, Hongzhang,Li, Guanhua. An industrial level system with nonisothermal simultaneous solid state saccharification, fermentation and separation for ethanol production[J]. BIOCHEMICAL ENGINEERING JOURNAL,2013,74(0):121-126.
APA Chen, Hongzhang,&Li, Guanhua.(2013).An industrial level system with nonisothermal simultaneous solid state saccharification, fermentation and separation for ethanol production.BIOCHEMICAL ENGINEERING JOURNAL,74(0),121-126.
MLA Chen, Hongzhang,et al."An industrial level system with nonisothermal simultaneous solid state saccharification, fermentation and separation for ethanol production".BIOCHEMICAL ENGINEERING JOURNAL 74.0(2013):121-126.
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