气候变化领域集成服务门户(CCPortal): Life cycle environmental impacts of five technological routes for straw utilisation in China

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DOI	10.1016/j.biombioe.2024.107157
	Life cycle environmental impacts of five technological routes for straw utilisation in China
	Li, Xiang; Du, Yueying; Chang, Huimin; Ai, Jing; Zhao, Yan
发表日期	2024
ISSN	0961-9534
EISSN	1873-2909
起始页码	183
卷号	183
英文摘要	Whilst five technological routes have been proposed in China and implemented for the comprehensive utilisation of crop straw, as fertilizer, fodder, fuel, basic material, and raw material, respectively, there is still uncertainty regarding their efficiency and environmental performance. This study compared the material flows, environmental impacts, and potential improvements of these five routes using full-scale data in the central region of China. All routes achieved efficient utilisation in terms of total solid with transfer coefficients of 67%similar to 100%, but the fertiliser, fuel and raw material routes required significant amounts of manure and wood chips, respectively, due to the process requirements. On the other hand, the routes producing briquette fuel and board had lower overall loads to the mid-point environmental categories than the others, with product substitutions leading to the highest savings in terms of climate change (-1330 kg CO2-eq/t and -311 kg CO2-eq/t, respectively). The fertiliser route performed differently in terms of toxic and non-toxic impact categories, with use-on-land of compost contributing -162 kg CO2-eq/t savings to climate change impacts by carbon sequestration and fertilizer substitution, and at the same time introducing N, P and trace metal pollution. According to the parameter sensitivity analysis, even slight reductions in material and energy consumption could lead to varying degrees of improvement in carbon reduction. Overall, the findings of this study provide quantitative evidence for the selection of appropriate technologies and the sustainable utilisation of crop straw, by maximizing the benefits of crop straw utilisation while minimizing its negative effects to the environment.
英文关键词	Straw utilisation; Material flow; Life cycle assessment; Environmental impacts; Technological comparison
语种	英语
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS类目	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号	WOS:001216693800001
来源期刊	BIOMASS & BIOENERGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289734
作者单位	Beijing Normal University
推荐引用方式 GB/T 7714	Li, Xiang,Du, Yueying,Chang, Huimin,et al. Life cycle environmental impacts of five technological routes for straw utilisation in China[J],2024,183.
APA	Li, Xiang,Du, Yueying,Chang, Huimin,Ai, Jing,&Zhao, Yan.(2024).Life cycle environmental impacts of five technological routes for straw utilisation in China.BIOMASS & BIOENERGY,183.
MLA	Li, Xiang,et al."Life cycle environmental impacts of five technological routes for straw utilisation in China".BIOMASS & BIOENERGY 183(2024).