Experimental investigation of enhanced carbonation by solvent extraction for indirect CO2 mineral sequestration
文献类型：期刊论文
| 作者 | Bao, Weijun; Li, Huiquan; Zhang, Yi |
| 刊名 | GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 4期号:6页码:785-799 |
| 关键词 | indirect CO2 mineral sequestration tributyl phosphate (TBP) acetic acid aragonite coupled reactive crystallization and solvent extraction |
| ISSN号 | 2152-3878 |
| 其他题名 | Greenh. Gases |
| 中文摘要 | An indirect CO2 mineral sequestration involving two separated steps with acetic acid as a recycling medium provides a promising method for CO2 sequestration as well as the minimum CO2 emission for calcium carbonate production. In such an indirect route, the calcium carbonate production in the second gas-liquid reactive crystallization step has been challenged by low carbonation efficiency. This paper describes significant enhancement of the second step by coupling reactive crystallization and solvent extraction with the introduction of the organic solvent, tributyl phosphate (TBP), to the process. Based on the reaction mechanism of this enhanced carbonation process, many influencing factors including stirring speed, phase ratio, reaction time, reaction temperature, CO2 partial pressure, and the composition of the initial aqueous solution, were studied. Given the operating conditions of 60 min reaction time, 500 rpm stirring speed, organic-to-aqueous phase volume ratio of 1, 80 degrees C reaction temperature, 4.0 MPa CO2 partial pressure, and initial pH of 7, the obtained crystallization conversion in the second step was found to increase from 20% to above 50%, with the incorporation of TBP and the addition of magnesium acetate. (C) 2014 Society of Chemical Industry and John Wiley & Sons, Ltd |
| 英文摘要 | An indirect CO2 mineral sequestration involving two separated steps with acetic acid as a recycling medium provides a promising method for CO2 sequestration as well as the minimum CO2 emission for calcium carbonate production. In such an indirect route, the calcium carbonate production in the second gas-liquid reactive crystallization step has been challenged by low carbonation efficiency. This paper describes significant enhancement of the second step by coupling reactive crystallization and solvent extraction with the introduction of the organic solvent, tributyl phosphate (TBP), to the process. Based on the reaction mechanism of this enhanced carbonation process, many influencing factors including stirring speed, phase ratio, reaction time, reaction temperature, CO2 partial pressure, and the composition of the initial aqueous solution, were studied. Given the operating conditions of 60 min reaction time, 500 rpm stirring speed, organic-to-aqueous phase volume ratio of 1, 80 degrees C reaction temperature, 4.0 MPa CO2 partial pressure, and initial pH of 7, the obtained crystallization conversion in the second step was found to increase from 20% to above 50%, with the incorporation of TBP and the addition of magnesium acetate. (C) 2014 Society of Chemical Industry and John Wiley & Sons, Ltd |
| WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Energy & Fuels ; Engineering, Environmental ; Environmental Sciences |
| 研究领域[WOS] | Energy & Fuels ; Engineering ; Environmental Sciences & Ecology |
| 关键词[WOS] | PRECIPITATED CALCIUM-CARBONATE ; STEEL CONVERTER SLAG ; ACETIC-ACID ; HIGH-PRESSURES ; DISSOLUTION ; DIOXIDE ; ACETATE ; SOLUBILITY ; ARAGONITE ; KINETICS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000345776600009 |
| 公开日期 | 2015-04-01 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11701]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bao, Weijun,Li, Huiquan,Zhang, Yi. Experimental investigation of enhanced carbonation by solvent extraction for indirect CO2 mineral sequestration[J]. GREENHOUSE GASES-SCIENCE AND TECHNOLOGY,2014,4(6):785-799. |
| APA | Bao, Weijun,Li, Huiquan,&Zhang, Yi.(2014).Experimental investigation of enhanced carbonation by solvent extraction for indirect CO2 mineral sequestration.GREENHOUSE GASES-SCIENCE AND TECHNOLOGY,4(6),785-799. |
| MLA | Bao, Weijun,et al."Experimental investigation of enhanced carbonation by solvent extraction for indirect CO2 mineral sequestration".GREENHOUSE GASES-SCIENCE AND TECHNOLOGY 4.6(2014):785-799. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。