Absorption of Carbon Dioxide in the aqueous solution of Diethanolamine (DEA) blended with 1-Butyl-1-Methylpyrrolidinium Trifluoromethanesulfonate [BmPyrr][OTf] at high pressure

3rd International Conference on Chemical Engineering Sciences and Applications 2017

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

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

40450, Malaysia^1

关键词: Absorption cells;    CO2 loading capacity;    Concentration ranges;    Diethanolamine;    Pressure and temperature;    Solubility behavior;    Solubility data;    Trifluoromethanesulfonate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/334/1/012055/pdf
DOI  :  10.1088/1757-899X/334/1/012055

来源: IOP

【 摘 要 】

Solubility data of carbon dioxide (CO2) in aqueous Diethanolamine (DEA) blended with 1-Butyl-1-Methylpyrrolidinium Trifluoromethanesulfonate [Bmpyrr][OTf] were measured at temperature 313.15K, 323.15K, 333.15K and pressure from 500psi up to 700 psi. The experiments covered over the concentration range of 0-10wt% for [Bmpyrr][OTf] and 30-40wt% for DEA. The solubility of CO2was evaluated by measuring the pressure drop in high pressure stirred absorption cell reactor. The experimental results showed that CO2loading in all DEA-[BmPyrr][OTf] mixtures studied increases with increasing of CO2partial pressure and temperature. It was also found that the CO2loading capacity increase significantly as the concentration of [Bmpyrr][OTf] increases. Jou and Mather model was used to predict the solubility of CO2in the mixtures where the experimental data were correlated as a function of temperature and CO2partial pressure. It was found that the model was successful in predicting the solubility behavior of the aqueous DEA-[Bmpyrr][OTf] systems considered in this study.