DOI: 10.1016/j.jcou.2016.02.004
Scopus记录号: 2-s2.0-84958763030
论文题名: Case study for production of calcium carbonate from carbon dioxide in flue gases and steelmaking slag
作者: Teir S. ; Kotiranta T. ; Pakarinen J. ; Mattila H.-P.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 14 起始页码: 37
结束页码: 46
语种: 英语
英文关键词: CaCO3
; CO2 utilisation
; GCC
; PCC
; Techno-economic evaluation
Scopus关键词: Calcium
; Carbon
; Carbon dioxide
; Carbonation
; Chlorine compounds
; Flue gases
; Flues
; Investments
; Slags
; Stainless steel
; Steelmaking
; Ammonium chloride
; CaCO<sub>3</sub>
; Environmental feasibility
; Environmental footprints
; Ground calcium carbonates
; Investment costs
; Payback periods
; Techno-economic evaluation
; Calcium carbonate
英文摘要: In this work, a concept for producing calcium carbonate from argon oxygen decarburisation (AOD) slag was further developed. In addition, its economic and environmental feasibility was evaluated. In the studied case, a stainless steel plant generating AOD slag and a paper plant requiring calcium carbonate are situated at a relatively close distance. The studied concept uses ammonium chloride as solvent for extracting calcium from the slag. In a subsequent step, the extracted calcium reacts with CO2 in lime kiln flue gas and precipitates as calcium carbonate. First, an industrial application of the concept was designed including the following units: A reverse osmosis unit enabling better recovery of ammonium chloride, an evaporator for removing excess water from the process, and a scrubber for removing ammonia vapours from the flue gases. The process was modelled, after which the investment costs and operational costs were estimated, and its environmental footprint was assessed. The results indicate that the process could in its current stage of development be economic for producing calcium carbonate for replacing ground calcium carbonate used by paper mills. If the net annual profit would be used as payment on the investment, the payback period would be 2.2 years. As the process consumes CO2 the process would have negative CO2 emissions, avoiding 0.3 t CO2 per tonne calcium carbonate produced. © 2016 Elsevier Ltd. All rights reserved. 资助项目: Tekes
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52924
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Teir S.,Kotiranta T.,Pakarinen J.,et al. Case study for production of calcium carbonate from carbon dioxide in flue gases and steelmaking slag[J]. Journal of CO2 Utilization,2016-01-01,14