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Influence of Harvest Period and Frequency on Methane Yield of Pennisetum Hybrids
Li, Lianhua; Sun, Yongming; Yuan, Zhenhong; Kong, Xiaoying; Wang, Yao
2016-09-01
Source PublicationJOURNAL OF ENERGY ENGINEERING
Volume142Issue:3
AbstractThe biomass yield and mesophilic anaerobic digestion performance of Pennisetum hybrid that were collected at different harvest periods and cutting frequencies were investigated. Results indicated that chemical composition, biomass yield, and specific methane yield of Pennisetum hybrid were significantly influenced by harvest period and cutting frequency. The contents of total solids, volatile solids, carbon, cellulose, lignin and starch increased with a prolonged harvest period, whereas the nitrogen and crude protein content decreased. Specific methane yields decreased considerably from 280 to 119mL/g VS with a prolonged harvest period, whereas the biomass yield per hectare increased. A maximum dry matter yield of 41.63t/ha was achieved when the Pennisetum hybrid was harvested in October. When the cutting frequencies increased from twice to three times per year, the specific methane yields increased as the biomass yield decreased. Because of the reverse trend of anaerobic digestion performance and biomass yield with different harvest periods and cutting frequencies, the methane yield per hectare increased with prolonged harvest period and decreased cutting frequency. A maximum area-specific methane yield of 4,466m3 was obtained; the corresponding energy production per hectare was approximately 169.71Gj. Methane yield from the Pennisetum hybrid in southern China suggested that this grass could be an alternative feedstock for biogas production.
SubtypeArticle
KeywordPennisetum Hybrid Anaerobic Digestion Harvested Date Cut Frequency
WOS HeadingsScience & Technology ; Technology
DOI10.1061/(ASCE)EY.1943-7897.0000298
WOS Subject ExtendedEnergy & Fuels ; Engineering
WOS KeywordETHANOL-PRODUCTION ; BIOGAS PRODUCTION ; ENERGY CROPS ; PERENNIAL GRASSES ; EASTERN CANADA ; BIOMASS ; FERMENTATION ; NAPIERGRASS ; SWITCHGRASS ; PURPUREUM
Indexed BySCI
Language英语
Funding OrganizationNational High Technology Research and Development Program of China(2012AA101802) ; Chinese Academy of Sciences Key deployment project(KGZD-EW-304-1) ; Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences(KLCAS-2012-05) ; Special Cooperation Project of Chinese Academy of Chinese
WOS SubjectEnergy & Fuels ; Engineering, Civil
WOS IDWOS:000383141900015
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/11838
Collection中国科学院广州能源研究所
AffiliationChinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Li, Lianhua,Sun, Yongming,Yuan, Zhenhong,et al. Influence of Harvest Period and Frequency on Methane Yield of Pennisetum Hybrids[J]. JOURNAL OF ENERGY ENGINEERING,2016,142(3).
APA Li, Lianhua,Sun, Yongming,Yuan, Zhenhong,Kong, Xiaoying,&Wang, Yao.(2016).Influence of Harvest Period and Frequency on Methane Yield of Pennisetum Hybrids.JOURNAL OF ENERGY ENGINEERING,142(3).
MLA Li, Lianhua,et al."Influence of Harvest Period and Frequency on Methane Yield of Pennisetum Hybrids".JOURNAL OF ENERGY ENGINEERING 142.3(2016).
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