globalchange  > 气候减缓与适应
DOI: 10.1016/j.jcou.2018.01.020
Scopus记录号: 2-s2.0-85041409515
论文题名:
Siderite precipitation using by-product red gypsum for CO2 sequestration
作者: Rahmani O.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 24
起始页码: 321
结束页码: 327
语种: 英语
英文关键词: Carbonation reaction ; CO2 ; Red gypsum ; Sequestration ; Siderite
Scopus关键词: Carbon dioxide ; Carbonation ; Chemical analysis ; Efficiency ; Gypsum ; Iron ores ; Iron research ; Carbonation reactions ; CO2 sequestration ; Mineral carbonation ; Physical and chemical characteristics ; Preliminary analysis ; Reaction temperature ; Sequestration ; Siderite ; Iron compounds
英文摘要: In this research, the feasibility of CO2 mineral carbonation by the use of by-product red gypsum (RG obtained from Huntsman Tioxide, Terengganu, Malaysia) to form iron carbonate (FeCO3) was evaluated. Toward this aim, the wide-range conditions of key procedure variables such as reaction temperature, reaction time, and CO2 pressure on the rate of mineral carbonation were studied. In addition, preliminary analyses on red gypsum were carried out to determine its physical and chemical characteristics. The feasibility of direct carbonation of RG to form FeCO3 was assessed at different CO2 pressures of 1 to 70 bar and different reaction temperatures of 25 to 200 °C to discover the effects of the key functions on overall direct carbonation. In general, increasing CO2 pressure to 10 bar was found to increase the overall FeCO3 purity and carbonation efficiency to 97% and 98%, respectively. Moreover, the reaction temperature affected the conversion rate at two different functions. First, FeCO3 purity and its carbonation efficiency increased to the maximum values when the reaction temperature increased to 150 °C, and then they were slightly decreased to 91% and 92%, respectively, with increase of temperature to 200 °C. The results also showed that the maximum product purity is achieved at optimum reaction time of 150 min. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111985
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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.. Siderite precipitation using by-product red gypsum for CO2 sequestration[J]. Journal of CO2 Utilization,2018-01-01,24
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