DOI: 10.1016/j.jcou.2018.08.017
Scopus记录号: 2-s2.0-85051938589
论文题名: CO2 sequestration by indirect mineral carbonation of industrial waste red gypsum
作者: Rahmani O.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 27 起始页码: 374
结束页码: 380
语种: 英语
英文关键词: Calcite
; CO2sequestration
; Mineral carbonation
; Red gypsum
Scopus关键词: Calcite
; Carbon dioxide
; Greenhouse gases
; Gypsum
; Hematite
; Hydrated lime
; Sulfur compounds
; Calcium sulfate
; Carbonation process
; CO2sequestration
; Element analysis
; Environmental issues
; Mineral carbonation
; Reaction model
; Reaction progress
; Carbonation
英文摘要: In this research, the characterization of red gypsum (RG) and its reaction progress during the indirect mineral carbonation process were studied. X-ray diffraction results showed that the calcium sulfate and hematite are the dominant components in the RG samples. Three main phases of calcium in the RG were recognized: Ca (OH)2, Ca-S-O, and Ca-Fe-O. Element analysis by ICP-OES also revealed that the RG consists of three major constitutions: CaO (32.2%), SO3 (31.6%), and Fe2O3 (28.99%). To understand the reaction progress of RG in the carbonation process, the reaction model code PHREEQC-2.18 was found to be a very useful tool since it allows the exposure of all dissolved species of RG and presents its mineral phases at each time step. Furthermore, the mineral carbonation of RG delivered the reaction progress changes with Ca phases and, therefore, dissolved calcium (hydr)oxide starts to control the pH and the CO2 uptake. In short, the findings of this study could be useful in resolving problem of greenhouse gases with less environmental issues. © 2018 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111790
Appears in Collections: 气候减缓与适应
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作者单位: Department of Petroleum Engineering, Mahabad Branch, Islamic Azad University, Mahabad, 59135-433, Iran; Department of Natural Resources Engineering and Management, School of Science and Engineering, University of Kurdistan Hewlêr (UKH), Erbil, Kurdistan Region, Iraq
Recommended Citation:
Rahmani O.. CO2 sequestration by indirect mineral carbonation of industrial waste red gypsum[J]. Journal of CO2 Utilization,2018-01-01,27