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Optimization of liquid hot water pretreatment on Hybrid Pennisetum anaerobic digestion and its effect on energy efficiency

文献类型：期刊论文

作者Kang, Xihui1,4,5,6; Zhang, Yi6; Lin, Richen2,3; Li, Lianhua5,6; Zhen, Feng5,6; Kong, Xiaoying4,5,6; Sun, Yongming4,5,6; Yuan, Zhenhong6
刊名ENERGY CONVERSION AND MANAGEMENT
出版日期2020-04-15
卷号210页码:11
关键词Energy crops Pretreatment Liquid hot water Anaerobic digestion Response surface methodology Energy efficiency
ISSN号0196-8904
DOI10.1016/j.enconman.2020.112718
通讯作者Li, Lianhua(lilh@ms.giec.ac.cn) ; Sun, Yongming(sunym@ms.giec.ac.cn)
英文摘要To overcome the inherent complexity of lignocellulosic biomass and improve its biological conversion efficiency, the central composite surface response methodology was used to optimize the process variables (temperature, reaction time and liquid-to-solid ratio) in liquid hot water pretreatment for biomethane production from the anaerobic digestion of Hybrid Pennisetum (a typical energy crop in southern China). Temperature, reaction time and water content were varied between 160-200 degrees C, 20-60 min and 60-90 mL respectively. The biomethane yields from pretreated material were considered as response variables to different processes conditions. Results showed untreated Hybrid Pennisetum had a biomethane potential of 218.6 L/kg volatile solid (VS) (corresponding to a biodegradability of 62.6%). The effect of liquid hot water pretreatment on the biomethane yield was distinct. Pretreatment severities less than 4.55 resulted in increased biomethane yields. However, further increasing the severity led to lower biomethane yields. The optimum biomethane yield (290.6 L/kg VS) was obtained from pretreated Hybrid Pennisetum at 175 degrees C for 35 min, with the highest biodegradability of 83.2%. Energy balance showed that, under the optimal pretreatment condition, the highest energy conversion efficiency of 76.1% was attained in theory. If the process energy inputs are included, a process energy efficiency of 51.7% could be realized with proper heat recovery.
WOS关键词IMPROVING METHANE PRODUCTION ; HYDROTHERMAL PRETREATMENT ; ENZYMATIC DIGESTIBILITY ; LIGNOCELLULOSIC BIOMASS ; BIOMETHANE PRODUCTION ; CO-DIGESTION ; RICE STRAW ; PROCESS PERFORMANCE ; ACID PRETREATMENT ; LIGNIN REMOVAL
资助项目National Natural Science Foundation of China[51776208] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21050400] ; Science and Technology Planning Project of Guangdong Province[2017B020238005] ; Science and Technology Program of Guangzhou[201803030007] ; Agricultural Technology Research and Development Project of Guangdong Province[2018LM2178] ; European Union's Horizon 2020 research and innovation programme under the Marie SklodowskaCurie grant[797259] ; Office of the China Postdoctoral Council[ZD2018025] ; Helmholtz Association[ZD2018025]
WOS研究方向Thermodynamics ; Energy & Fuels ; Mechanics
语种英语
WOS记录号WOS:000524316000039
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province ; Science and Technology Program of Guangzhou ; Agricultural Technology Research and Development Project of Guangdong Province ; European Union's Horizon 2020 research and innovation programme under the Marie SklodowskaCurie grant ; Office of the China Postdoctoral Council ; Helmholtz Association
源URL[http://ir.giec.ac.cn/handle/344007/27037]  
专题中国科学院广州能源研究所
通讯作者Li, Lianhua; Sun, Yongming
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Univ Coll Cork, Sch Engn, Cork, Ireland
3.Univ Coll Cork, Environm Res Inst, MaREI Ctr, Cork, Ireland
4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
5.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
6.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Kang, Xihui,Zhang, Yi,Lin, Richen,et al. Optimization of liquid hot water pretreatment on Hybrid Pennisetum anaerobic digestion and its effect on energy efficiency[J]. ENERGY CONVERSION AND MANAGEMENT,2020,210:11.
APA Kang, Xihui.,Zhang, Yi.,Lin, Richen.,Li, Lianhua.,Zhen, Feng.,...&Yuan, Zhenhong.(2020).Optimization of liquid hot water pretreatment on Hybrid Pennisetum anaerobic digestion and its effect on energy efficiency.ENERGY CONVERSION AND MANAGEMENT,210,11.
MLA Kang, Xihui,et al."Optimization of liquid hot water pretreatment on Hybrid Pennisetum anaerobic digestion and its effect on energy efficiency".ENERGY CONVERSION AND MANAGEMENT 210(2020):11.

入库方式： OAI收割

来源：广州能源研究所

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