Gas-Liquid Reactive Crystallization Kinetics of Hydromagnesite in the MgCl2-CO2-NH3-H2O System: Its Potential in CO2 Sequestration
文献类型：期刊论文
| 作者 | Wang, Daoguang; Li, Zhibao |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2012-12-19 |
| 卷号 | 51期号:50页码:16299-16310 |
| 关键词 | MAGNESIUM CARBONATE CALCIUM-CARBONATE MSMPR CRYSTALLIZER PRECIPITATION TEMPERATURE SOLUBILITY AGGLOMERATION ABSORPTION NUCLEATION STABILITY |
| ISSN号 | 0888-5885 |
| 通讯作者 | Li, ZB |
| 英文摘要 | The reactive crystallization kinetics of hydromagnesite in the MgCl2-CO2-NH3-H2O system, which plays an important role in a new approach to sequester CO2 with saline sea/lake brines, was systematically investigated by the MSMPR (mixed-suspension-mixed-product removal) crystallization method. The temperature effect on the crystallization of magnesium carbonate hydrates in the system was first investigated batchwise. The optimum temperature of 353.2 K for precipitation of the regular spherical hydromagnesite with good filterability was selected for kinetic study. The supersaturation cf hydromagnesite was experimentally tested, and the activity coefficients of aqueous species were strictly calculated by the Pitzer model embedded in the Aspen Plus platform. The nucleation and growth rate and agglomeration kernel were determined by moments analysis based on the PSD (particle size distribution) of crystals in volume coordinates. The corresponding kinetic parameters in three empirical equations were then estimated by linear regression. The resulting volume growth rate order of 2.30 means that surface integration is dominant in the volume growth of hydromagnesite. A simplified process for the new sequestration approach was finally constructed. The value of hydromagnesite as carbonated product was assessed considering the scale-up and costs of such a process. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | MAGNESIUM CARBONATE ; CALCIUM-CARBONATE ; MSMPR CRYSTALLIZER ; PRECIPITATION ; TEMPERATURE ; SOLUBILITY ; AGGLOMERATION ; ABSORPTION ; NUCLEATION ; STABILITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000312434600015 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2945]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Daoguang,Li, Zhibao. Gas-Liquid Reactive Crystallization Kinetics of Hydromagnesite in the MgCl2-CO2-NH3-H2O System: Its Potential in CO2 Sequestration[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2012,51(50):16299-16310. |
| APA | Wang, Daoguang,&Li, Zhibao.(2012).Gas-Liquid Reactive Crystallization Kinetics of Hydromagnesite in the MgCl2-CO2-NH3-H2O System: Its Potential in CO2 Sequestration.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,51(50),16299-16310. |
| MLA | Wang, Daoguang,et al."Gas-Liquid Reactive Crystallization Kinetics of Hydromagnesite in the MgCl2-CO2-NH3-H2O System: Its Potential in CO2 Sequestration".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 51.50(2012):16299-16310. |
入库方式： OAI收割
来源：过程工程研究所
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