Understanding the vapour-liquid equilibrium of CO2 in mixed solutions of potassium carbonate and potassium glycinate

被引：19

作者：

Lee, Andrew ^{[1
]}

Mumford, Kathryn A. ^{[1
]}

Wu, Yue ^{[1
]}

Nicholas, Nathan ^{[1
]}

Stevens, Geoff W. ^{[1
]}

机构：

[1] Univ Melbourne, Dept Chem & Biomol Engn, Cooperat Res Ctr Greenhouse Gas Technol CO2CRC, Peter Cook Ctr CCS Res,Particulate Fluids Proc Ct, Melbourne, Vic 3010, Australia

来源：

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL | 2016年 / 47卷

关键词：

Carbon dioxide capture; Potassium carbonate; Potassium glycinate; Model; DIOXIDE ABSORPTION; CAPTURE; SOLVENT; PLANT; ACID;

D O I：

10.1016/j.ijggc.2016.02.005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A thermodynamic model was developed to describe the absorption of CO2 into a glycine promoted potassium carbonate solution. It was found that the model could effectively predict vapour-liquid equilibrium of CO2 and solubility of hydrated potassium carbonate and potassium bicarbonate in glycine promoted K2CO3 solutions over a range of temperatures. Both simulation and experimental results showed CO2 partial pressure decreased with the addition of glycine, indicating a good potential to improve CO2 absorption efficiency in potassium carbonate solution. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：303 / 309

页数：7