High-solids ethanol fermentation with single-stage methane anaerobic it digestion for maximizing bioenergy conversion from a C-4 grass (Pennisetum purpereum)

doi:10.1016/j.apenergy.2018.02.021

	High-solids ethanol fermentation with single-stage methane anaerobic it digestion for maximizing bioenergy conversion from a C-4 grass (Pennisetum purpereum)
	Du, Jiliang 2; Chen, Le 2; Li, Jianan 2; Zuo, Ranan 2; Yang, Xiushan 2; Chen, Hongzhang 1; Zhuang, Xinshu 3; Tian, Shen 2
刊名	APPLIED ENERGY
	2018-04-01
卷号	215 页码:437-443
关键词	High-solids SSF Single-stage anaerobic digestion Whole stillage Bloenergy conversion Co-production
ISSN号	0306-2619
DOI	10.1016/j.apenergy.2018.02.021
通讯作者	Tian, Shen(cnu_tianshen@sina.com)
英文摘要	High-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.
资助项目	National Natural Science Foundation of China[31570790] ; National Key Technology RD Program[2013BAD22B03]
WOS关键词	SACCHAROMYCES-CEREVISIAE ; BIOETHANOL PRODUCTION ; CO-DIGESTION ; SIMULTANEOUS SACCHARIFICATION ; LIGNOCELLULOSIC BIOMASS ; ENZYMATIC-HYDROLYSIS ; WHOLE STILLAGE ; FRUIT BUNCH ; BIO-ETHANOL ; BATCH
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000428974500035
资助机构	National Natural Science Foundation of China ; National Key Technology RD Program
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/23162]
专题	中国科学院广州能源研究所
通讯作者	Tian, Shen
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China 2.Capital Normal Univ, Coll Life Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China
推荐引用方式 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.