气候变化领域集成服务门户(CCPortal): Prospective life cycle assessment of large-scale biochar production and use for negative emissions in stockholm

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DOI	10.1021/acs.est.9b01615
	Prospective life cycle assessment of large-scale biochar production and use for negative emissions in stockholm
	Azzi E.S.; Karltun E.; Sundberg C.
发表日期	2019
ISSN	0013936X
起始页码	8466
结束页码	8476
卷号	53 期号:14
英文摘要	Several cities in Sweden are aiming for climate neutrality within a few decades and for negative emissions thereafter. Combined biochar, heat, and power production is an option to achieve carbon sequestration for cities relying on biomass-fuelled district heating, while biochar use could mitigate environmental pollution and greenhouse gas emissions from the agricultural sector. By using prospective life cycle assessment, the climate impact of the pyrolysis of woodchips in Stockholm is compared with two reference scenarios based on woodchip combustion. The pyrolysis of woodchips produces heat and power for the city of Stockholm, and biochar whose potential use as a feed and manure additive on Swedish dairy farms is explored. The climate change mitigation trade-off between bioenergy production and biochar carbon sequestration in Stockholm's context is dominated by the fate of marginal power. If decarbonisation of power is achieved, building a new pyrolysis plant becomes a better climate option than conventional combustion. Effects of cascading biochar use in animal husbandry are uncertain but could provide 10-20% more mitigation than direct biochar soil incorporation. These results help design regional biochar systems that combine negative carbon dioxide emissions with increased methane and nitrous oxide mitigation efforts and can also guide the development of minimum performance criteria for biochar products. American Chemical Society.
scopus关键词	Agriculture; Biomass; Carbon dioxide; Combustion; Economic and social effects; Fertilizers; Gas emissions; Global warming; Greenhouse gases; Nitrogen oxides; Product design; Pyrolysis; Bioenergy productions; Carbon dioxide emissions; Carbon sequestration; Climate change mitigation; Conventional combustions; Environmental pollutions; Life Cycle Assessment (LCA); Performance criterion; Life cycle; biochar; charcoal; methane; nitrous oxide; unclassified drug; biochar; carbon dioxide; biochar; bioenergy; biological production; carbon sequestration; emission; life cycle analysis; mitigation; trade-off; agriculture; air pollution; animal husbandry; Article; bioenergy; biomass; carbon footprint; carbon sequestration; city; climate change; combustion; dairying; heat; life cycle assessment; prospective study; pyrolysis; Sweden; carbon sequestration; soil; Stockholm [Sweden]; Sweden; Animalia; Carbon Dioxide; Carbon Sequestration; Charcoal; Nitrous Oxide; Prospective Studies; Soil; Sweden
来源期刊	Environmental Science and Technology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176190
作者单位	Department of Sustainable Development, Environmental Science and Engineering (SEED), KTH Royal Institute of Technology, Stockholm, 100 44, Sweden; Department of Soil and Environment, Swedish University of Agricultural Sciences (SLU), Uppsala, 750 07, Sweden; Department of Energy and Technology, Swedish University of Agricultural Sciences (SLU), Uppsala, 750 07, Sweden
推荐引用方式 GB/T 7714	Azzi E.S.,Karltun E.,Sundberg C.. Prospective life cycle assessment of large-scale biochar production and use for negative emissions in stockholm[J],2019,53(14).
APA	Azzi E.S.,Karltun E.,&Sundberg C..(2019).Prospective life cycle assessment of large-scale biochar production and use for negative emissions in stockholm.Environmental Science and Technology,53(14).
MLA	Azzi E.S.,et al."Prospective life cycle assessment of large-scale biochar production and use for negative emissions in stockholm".Environmental Science and Technology 53.14(2019).