气候变化领域集成服务门户(CCPortal): Assessing the Additional Carbon Savings with Biofuel

CCPortal

DOI	10.1007/s12155-020-10149-0
	Assessing the Additional Carbon Savings with Biofuel
	Khanna M.; Wang W.; Wang M.
发表日期	2020
ISSN	19391234
起始页码	1082
结束页码	1094
卷号	13 期号:4
英文摘要	A recent study by DeCicco et al. (Climatic Change 138:667–680, 2016) claims that corn used for ethanol should not be considered to be inherently biogenically carbon-neutral because not all that corn was grown additional to the level otherwise. By assessing the extent of carbon neutrality of corn for ethanol using the reference point baseline approach and historical data that study concluded that the carbon intensity of US corn ethanol is 27% higher than that of gasoline. We develop a framework to determine the carbon neutrality of corn for ethanol by assessing the additional carbon uptake by crops using an anticipated baseline approach. We also apply this framework to determine the additional corn produced for ethanol and include the direct life cycle carbon emissions of only that portion of corn in the direct life cycle carbon intensity of corn ethanol. We implement this framework by integrating an economic model of the agricultural sector in the USA with a biogenic carbon model and life cycle analysis to quantify biogenic carbon uptake and direct life cycle emissions with and without corn ethanol expansion over the 2007–2027 period. We find that the combined biogenic carbon emissions and direct life cycle carbon emission intensity of corn ethanol (not including indirect land use related emissions) is 21% lower than gasoline. The lower value of this carbon intensity of corn ethanol compared with gasoline is robust to a wide range of parametric assumptions. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
英文关键词	Anticipated baseline approach; Biogenic carbon intensity; Corn ethanol; Dynamic optimization; Economic model; Life cycle carbon intensity
scopus关键词	Agricultural robots; Biofuels; Economics; Ethanol; Gasoline; Land use; Life cycle; Agricultural sector; Carbon emission intensities; Carbon emissions; Carbon neutralities; Economic modeling; Life cycle analysis; Life cycle emissions; Reference points; Carbon
来源期刊	Bioenergy Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176561
作者单位	Department of Agricultural and Consumer Economics, Institute for Sustainability, Energy, and Environment, Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois Urbana, Champaign, IL 61801, United States; Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois Urbana, Champaign, IL 61801, United States; Systems Assessment Group, Energy Systems Division, Argonne National Laboratory, Argonne, IL 60439, United States
推荐引用方式 GB/T 7714	Khanna M.,Wang W.,Wang M.. Assessing the Additional Carbon Savings with Biofuel[J],2020,13(4).
APA	Khanna M.,Wang W.,&Wang M..(2020).Assessing the Additional Carbon Savings with Biofuel.Bioenergy Research,13(4).
MLA	Khanna M.,et al."Assessing the Additional Carbon Savings with Biofuel".Bioenergy Research 13.4(2020).