气候变化领域集成服务门户(CCPortal): Carbon dioxide sequestration in power plant ca-rich ash waste deposits

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DOI	10.3176/oil.2021.1.04
	Carbon dioxide sequestration in power plant ca-rich ash waste deposits
	Leben K.; Mõtlep R.; Konist A.; Pihu T.; Kirsimäe K.
发表日期	2021
ISSN	0208189X
起始页码	65
结束页码	88
卷号	38 期号:1
英文摘要	In order to reach future goals of net carbon neutrality and climate change mitigation, various carbon capture and sequestration techniques must be implemented. Industrial waste rich in chemically active alkaline metal oxides is considered as a potential material for CO2 sequestration. The authors studied the long-term CO2 binding capacity of Ca-rich oil shale ash (OSA) deposits at oil shale(OS)-fired power plants of Estonia and estimated the remaining sequestration potential for in-situ carbonation. Providing energy security, the Estonian oil shale industry is the biggest national producer of solid waste and the leading greenhouse gas emitter, making the country one of the largest per capita producers of CO2 in Europe. The study shows that ash deposits are currently only partially carbonated, with an average CO2 binding rate of 51 kg per tonne of hydrated sediment, most of which being bound in such carbonate minerals as calcite and vaterite, as well as in Ca-silicate thaumasite. It is estimated that at full carbonation of reactive Ca and Mg phases in ash (portlandite, ettringite and semicrystalline C-S-H), the projected average total CO2 binding potential could rise to ca 200 kg per tonne of ash. © 2021 Authors and Estonian Academy Publishers.
英文关键词	Ash utilisation; CO2 sequestration; Mineral carbonation; Oil shale ash
scopus关键词	Binding energy; Calcite; Carbon capture; Carbonation; Climate change; Deposits; Energy security; Greenhouse gases; Hydrated lime; Oil shale; Petroleum industry; Power plants; Silicate minerals; Alkaline metal oxides; Binding capacities; Carbon capture and sequestrations; Carbon dioxide sequestration; Carbon neutralities; Climate change mitigation; Estonian oil shale; Potential materials; Carbon dioxide
来源期刊	Oil Shale
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177142
作者单位	Department of Geology, University of Tartu, Ravila 14A, Tartu, 50411, Estonia; Department of Energy Technology, Tallinn University of Technology, Ehitajate tee 5, Tallinn, 19086, Estonia
推荐引用方式 GB/T 7714	Leben K.,Mõtlep R.,Konist A.,et al. Carbon dioxide sequestration in power plant ca-rich ash waste deposits[J],2021,38(1).
APA	Leben K.,Mõtlep R.,Konist A.,Pihu T.,&Kirsimäe K..(2021).Carbon dioxide sequestration in power plant ca-rich ash waste deposits.Oil Shale,38(1).
MLA	Leben K.,et al."Carbon dioxide sequestration in power plant ca-rich ash waste deposits".Oil Shale 38.1(2021).