Thermodynamic Equilibrium Solubility of Diethanolamine _ N-Butyl-1-Methylpyrrolidinium Dicyanamide [DEABMPYRR DCA] Mixtures for Carbon Dioxide Capture

3rd International Conference on Global Sustainability and Chemical Engineering

工业技术;化学工业

Salleh, R.M.^1 ; Jamaludin, S.N.^1

Chemical Engineering Department, Faculty of Chemical Engineering, Universiti Teknologi MARA, Selangor, Shah Alam

40450, Malaysia^1

关键词: Absorption cells;    Carbon dioxide capture;    Experimental values;    Loading capacities;    Pyrrolidinium-based ionic liquid;    Solubility data;    Solubility of CO;    Thermodynamic equilibria;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/358/1/012010/pdf
DOI  :  10.1088/1757-899X/358/1/012010

学科分类：工业工程学

来源: IOP

【 摘 要 】

Solubility data of carbon dioxide (CO2) in aqueous Diethanolamine (DEA) blended with pyrrolidinium-based ionic liquid: N-Butyl-1-Methylpyrrolidinium Dicyanamide [Bmpyrr][DCA] are presented at various temperatures (313.15K-333.15K) and pressure up to about 700 psi. The concentration of [Bmpyrr][DCA] ranges from 0-10wt% and 30-40wt% for DEA. The solubility of CO2 was evaluated by measuring the pressure drop in high pressure stirred absorption cell reactor. The CO2 loading in all studied mixtures increases with an increase in CO2 partial pressure and decreases with temperature. It was also found that the CO2 loading capacity decrease as the concentration of [Bmpyrr][DCA] increases. The experimental data were correlated as a function of temperature and CO2 partial pressure to predict the solubility of CO2 in the mixtures. It was found that the model predicted results in a good agreement with experimental value.