Assessment of Coproduction of Ethanol and Methane from Pennisetum purpureum: Effects of Pretreatment, Process Performance, and Mass Balance

doi:10.1021/acssuschemeng.1c02010

	Assessment of Coproduction of Ethanol and Methane from Pennisetum purpureum: Effects of Pretreatment, Process Performance, and Mass Balance
	Wu, Peiwen 1,5; Kang, Xihui 3; Wang, Wen 2,4,5; Yang, Gaixiu 2,4,5; He, Linsong 2,4,5; Fan, Yafeng 2,4,5; Cheng, Xingyu 2,4,5; Sun, Yongming 2,4,5; Li, Lianhua 2,4,5
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2021-08-16
卷号	9 期号:32 页码:10771-10784
关键词	Energy crops Pretreatment Anaerobic digestion Biofuels Material flow analysis
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.1c02010
通讯作者	Kang, Xihui(XKang@ucc.ie) ; Li, Lianhua(lilh@ms.giec.ac.cn)
英文摘要	To overcome the structural complexity and improve the bioconversion efficiency of Pennisetum purpureum into bioethanol or/and biomethane, the effects of ensiling pretreatment, NaOH pretreatment, and their combination on digestion performance and mass flow were comparatively investigated. The coproduction of bioethanol and biomethane showed that 65.2 g of ethanol and 102.6 g of methane could be obtained from 1 kg of untreated Pennisetum purpureum, and pretreatment had significant impacts on the production; however, there is no significant difference between the results of NaOH pretreatment and ensiling-NaOH pretreatment in terms of production improvement. Among them, 1 kg of ensiling-NaOH treated Pennisetum purpureum could yield 269.4 g of ethanol and 144.5 g of methane, with a respective increase of 313.2% and 40.8% compared to that from the untreated sample; this corresponded to the final energy production of 14.5 MJ, with the energy conversion efficiency of 46.8%. In addition, for the ensiling-NaOH treated Pennisetum purpureum, the energy recovery from coproduction (process III) was 98.9% higher than that from enzymatic hydrolysis and fermentation only (process I) and 53.6% higher than that from anaerobic digestion only (process II). This indicated that coproduction of bioethanol and biomethane from Pennisetum purpureum after ensiling and NaOH pretreatment is an effective method to improve its conversion efficiency and energy output.
资助项目	National Key R&D Program of China[2018YFE0111000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21050400] ; Natural Science Foundation of Guangdong Province[2018A0303130335] ; Natural Science Foundation of Guangdong Province[2015A030310413] ; SFI Future Innovator Prize Zero Emissions Challenge project Electrofuels in a Circular Economy (EFACE)[19/FIP/ZE/7565] ; China Scholarship Council
WOS关键词	ANAEROBIC-DIGESTION PERFORMANCE ; ALKALINE PRETREATMENT ; BIOGAS PRODUCTION ; ENZYMATIC-HYDROLYSIS ; LIGNOCELLULOSIC BIOMASS ; WHEAT-STRAW ; SILAGE QUALITY ; IONIC LIQUID ; ENERGY ; WASTE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000687050400011
资助机构	National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Natural Science Foundation of Guangdong Province ; SFI Future Innovator Prize Zero Emissions Challenge project Electrofuels in a Circular Economy (EFACE) ; China Scholarship Council
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33645]
专题	中国科学院广州能源研究所
通讯作者	Kang, Xihui; Li, Lianhua
作者单位	1.Guangzhou Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Radionuclides Pollut Contr, Key Lab,Minist Educ Water Qual Secur & Protect Pe, Guangzhou 510006, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Univ Coll Cork, MaREI Ctr, Environm Res Inst, Cork, Ireland 4.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Wu, Peiwen,Kang, Xihui,Wang, Wen,et al. Assessment of Coproduction of Ethanol and Methane from Pennisetum purpureum: Effects of Pretreatment, Process Performance, and Mass Balance[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2021,9(32):10771-10784.
APA	Wu, Peiwen.,Kang, Xihui.,Wang, Wen.,Yang, Gaixiu.,He, Linsong.,...&Li, Lianhua.(2021).Assessment of Coproduction of Ethanol and Methane from Pennisetum purpureum: Effects of Pretreatment, Process Performance, and Mass Balance.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,9(32),10771-10784.
MLA	Wu, Peiwen,et al."Assessment of Coproduction of Ethanol and Methane from Pennisetum purpureum: Effects of Pretreatment, Process Performance, and Mass Balance".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9.32(2021):10771-10784.