| DOI: | 10.2172/1166022
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| 报告号: | DOE-SBU--4633
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| 报告题名: | Reactivity of Iron Bearing Minerals and CO<sub>2</sub> Sequestration: A Multi-ÂDisciplinary and Experimental Approach |
| 作者: | Schoonen, Martin A.
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| 出版年: | 2014
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| 发表日期: | 2014-12-22
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| 总页数: | 8
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | carbon sequestration
; mineral reactivity
; brine
; supercritical carbondioxide
; hematite
; pyrite
; siderite
|
| 中文主题词: | 碳
; 冰上通道
; 二氧化碳
; 水道
; 铁
; 矿物
|
| 主题词: | CARBON
; LEADS
; CARBON DIOXIDE
; IRON
; MINERALS
|
| 英文摘要: | The reactivity of sandstones was studied under conditions relevant to the injection of supercritical carbon dioxide in the context of carbon geosequestration. The emphasis of the study was on the reactivity of iron-Âbearing minerals when exposed to supercritical CO2 (scCO2) and scCO2 with commingled aqueous solutions containing H2S and/or SO2. Flow through and batch experiments were conducted. Results indicate that sandstones, irrespective of their mineralogy, are not reactive when exposed to pure scCO2 or scCO2 with commingled aqueous solutions containing H2S and/or SO2 under conditions simulating the environment near the injection point (flow through experiments). However, sandstones are reactive under conditions simulating the edge of the injected CO2 plume or ahead of the plume (batch experiments). Sandstones containing hematite (red sandstone) are particularly reactive. The composition of the reaction products is strongly dependent on the composition of the aqueous phase. The presence of dissolved sulfide leads to the conversion of hematite into pyrite and siderite. The relative amount of the pyrite and siderite is influenced by the ionic strength of the solution. Little reactivity is observed when sulfite is present in the aqueous phase. Sandstones without hematite (grey sandstones) show little reactivity regardless of the solution composition. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1166022
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41321
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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Content Type |
Version |
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| 1166022.pdf（1101KB） | 研究报告 | -- | 开放获取 | | View
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作者单位: | Stony Brook Univ., NY (United States). Dept. of Geosciences
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| Recommended Citation: | |
Schoonen, Martin A.. Reactivity of Iron Bearing Minerals and CO<sub>2</sub> Sequestration: A Multi-ÂDisciplinary and Experimental Approach. 2014-01-01.
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