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High-solids ethanol fermentation with single-stage methane anaerobic it digestion for maximizing bioenergy conversion from a C-4 grass (Pennisetum purpereum)
Du, Jiliang1; Chen, Le1; Li, Jianan1; Zuo, Ranan1; Yang, Xiushan1; Chen, Hongzhang2; Zhuang, Xinshu3; Tian, Shen1
2018-04-01
Source PublicationAPPLIED ENERGY
ISSN0306-2619
Volume215Pages:437-443
AbstractHigh-solids simultaneous saccharification and fermentation integrating single-stage anaerobic digestion was designed for bioenergy conversion from steam-exploded Pennisetum purperewn, a perennial C-4 grass. Three scenarios for ethanol production, methane production and ethanol-methane co-production were investigated and compared in terms of production yield. A terminal ethanol titer of 62.6 +/- 1.9 g/L with the highest ethanol yield of 90.9% was achieved when the fed-batch mode was carried out at a final substrate loading of 35% (w/v) dry matter content. The ethanol stillage was used for methane production in a semi-continuous CSTR system operated with different organic loading rates (OLRs) at a hydraulic retention time (HRT) of 30 days. The high performance was achieved at OLR of 6.0 g VS.L-1 d(-1), average yielding 358.7L CH4 per kilogram volatile solid (VS) with a total VS removal rate of 73.8%. On the basis of mass balance, the overall production yield achieved in this study was: 121.6 g ethanol + 110.6 g methane per kilogram grass with a finally 89.6% of cellulose recovery + 62.5% hemicellulose recovery. These results indicated that the high-solids ethanol fermentation with single-stage methane anaerobic digestion of lignocellulosic biomass is a valid approach to maximize the holocellulose bioconversion and improve the bioenergy production.
KeywordHigh-solids Ssf Single-stage Anaerobic Digestion Whole Stillage Bloenergy Conversion Co-production
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.apenergy.2018.02.021
Indexed BySCI
Language英语
WOS KeywordSACCHAROMYCES-CEREVISIAE ; BIOETHANOL PRODUCTION ; CO-DIGESTION ; SIMULTANEOUS SACCHARIFICATION ; LIGNOCELLULOSIC BIOMASS ; ENZYMATIC-HYDROLYSIS ; WHOLE STILLAGE ; FRUIT BUNCH ; BIO-ETHANOL ; BATCH
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(31570790) ; National Key Technology RD Program(2013BAD22B03)
WOS IDWOS:000428974500035
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24176
Collection研究所(批量导入)
Affiliation1.Capital Normal Univ, Coll Life Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Du, Jiliang,Chen, Le,Li, Jianan,et al. High-solids ethanol fermentation with single-stage methane anaerobic it digestion for maximizing bioenergy conversion from a C-4 grass (Pennisetum purpereum)[J]. APPLIED ENERGY,2018,215:437-443.
APA Du, Jiliang.,Chen, Le.,Li, Jianan.,Zuo, Ranan.,Yang, Xiushan.,...&Tian, Shen.(2018).High-solids ethanol fermentation with single-stage methane anaerobic it digestion for maximizing bioenergy conversion from a C-4 grass (Pennisetum purpereum).APPLIED ENERGY,215,437-443.
MLA Du, Jiliang,et al."High-solids ethanol fermentation with single-stage methane anaerobic it digestion for maximizing bioenergy conversion from a C-4 grass (Pennisetum purpereum)".APPLIED ENERGY 215(2018):437-443.
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