Thermodynamic modeling for the carbonate system K-HCO3-CO3 in alkanolamine solutions: An extended application for CO2 scrubbing
文献类型：期刊论文
| 作者 | Wang, Qiaoxin1,2; Li, Zhibao1 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020-03-15 |
| 卷号 | 384页码:10 |
| 关键词 | Alkanolamine Solid-liquid equilibrium Modeling Solubility Thermodynamics |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2019.123250 |
| 英文摘要 | The K2CO3 slurry-based, CO2 absorption technology in amines involves in-depth analysis of chemical equilibrium for all three phases. However, the reported studies regarding solubility and thermodynamics modeling of the solid-liquid system: K-CO3-HCO3 in alkanolamine solutions are limited. We first performed vapor-liquid equilibrium calculation to study the absorption profile of CO2 in monoethanolamine (MEA)/diethanolamine (DEA) solutions using OLI Studio Stream Analyzer, results were in good agreement with literature data. We further applied the dissolution method to measure the solubility of K2CO3 and KHCO3 in the aqueous alkanolamine solution from 283 to 353 K, P = 0.1 MPa. A chemical model was developed for the purpose of conducing thermodynamic analysis by the regression of solubility data via the mixed-solvent-electrolyte, activity coefficient model. The relative deviations are within 5% for each solid-liquid system after reparameterization. Tuning the newly-regressed parameters allowed for a better prediction of solubility, they also come vital in evaluating the absorption performance of CO2 in quaternary systems, which are made available to aid in process modeling. |
| WOS关键词 | VAPOR-LIQUID-EQUILIBRIA ; AQUEOUS MONOETHANOLAMINE ; MASS-TRANSFER ; POWER-PLANTS ; SOLUBILITY ; CAPTURE ; ABSORPTION ; MEA ; DIETHANOLAMINE ; MIXTURES |
| 资助项目 | National Science Foundation of China[21776279] ; National Science Foundation of China[21978290] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000504405000148 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/38574]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Zhibao |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Dept Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Qiaoxin,Li, Zhibao. Thermodynamic modeling for the carbonate system K-HCO3-CO3 in alkanolamine solutions: An extended application for CO2 scrubbing[J]. CHEMICAL ENGINEERING JOURNAL,2020,384:10. |
| APA | Wang, Qiaoxin,&Li, Zhibao.(2020).Thermodynamic modeling for the carbonate system K-HCO3-CO3 in alkanolamine solutions: An extended application for CO2 scrubbing.CHEMICAL ENGINEERING JOURNAL,384,10. |
| MLA | Wang, Qiaoxin,et al."Thermodynamic modeling for the carbonate system K-HCO3-CO3 in alkanolamine solutions: An extended application for CO2 scrubbing".CHEMICAL ENGINEERING JOURNAL 384(2020):10. |
入库方式： OAI收割
来源：过程工程研究所
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