Greenhouse gas emissions of corn-ethanol production in China

doi:10.1016/j.ecolmodel.2012.07.011

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	Greenhouse gas emissions of corn-ethanol production in China
	Yang, Q. ; Chen, G. Q.
刊名	ecological modelling
	2013
关键词	Greenhouse gas emissions Corn-ethanol Bio-fuel LIFE-CYCLE NET ENERGY BIO-ETHANOL BIOFUEL SOILS LAND FUEL N2O CO2 TRANSPORTATION
DOI	10.1016/j.ecolmodel.2012.07.011
英文摘要	For China as the world's third largest ethanol producer, greenhouse gas emissions of corn-ethanol production are analyzed for the entire processes of corn cultivation, ethanol conversion and wastewater treatment. Besides the greenhouse gas emissions associated with primary fossil energy use embodied in all the energy and material flows into corn-ethanol processes, the increased greenhouse gas emissions due to soil tilling and erosion, methane emissions from burning corn stalk and the wastewater are carefully estimated. For per kg corn-ethanol produced, a net positive greenhouse gas emission of 11.61 kg CO2-equiv. is revealed corresponding to a striking increase of 5.99 times in greenhouse emissions when corn-ethanol is used as a substitute for gasoline. Moreover, ethanol production might lead to a highly remarkable 98% GHG reduction compared to gasoline by an ecological systems design of the production chain with constructed wetland, biogas and combined heat and power fully employed, though existing technology is illustrated to be far from carbon neutral under various allocations for co-products. (C) 2012 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000316579900019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Ecology; SCI(E); EI; 11; ARTICLE; ,SI; 176-184; 252
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154520]
专题	工学院
推荐引用方式 GB/T 7714	Yang, Q.,Chen, G. Q.. Greenhouse gas emissions of corn-ethanol production in China[J]. ecological modelling,2013.
APA	Yang, Q.,&Chen, G. Q..(2013).Greenhouse gas emissions of corn-ethanol production in China.ecological modelling.
MLA	Yang, Q.,et al."Greenhouse gas emissions of corn-ethanol production in China".ecological modelling (2013).