naa a22 4500 510821391 CHVBK 20180411083534.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11814-012-0178-x doi (NATIONALLICENCE)springer-10.1007/s11814-012-0178-x Solubility of carbon dioxide in ammonium-based ionic liquids: Butyltrimethylammonium bis(trifluoromethylsulfonyl)imide and methyltrioctylammonium bis(trifluoromethylsulfonyl)imide [Elektronische Daten] [Sang Nam, Byung-Chul Lee] Solubility results of carbon dioxide (CO2) in two ammonium-based ionic liquids, butyltrimethylammonium bis(trifluoromethylsulfonyl)imide ([N4,1,1,1][Tf2N]) and methyltrioctylammonium bis(trifluoromethylsulfonyl)imide ([N1,8,8,8][Tf2N]), are presented at pressures up to approximately 45 MPa and temperatures ranging from 303.15 K to 343.15 K. The solubility was determined by measuring bubble point pressures of mixtures of CO2 and ionic liquid using a high-pressure equilibrium apparatus equipped with a variable-volume view cell. Sharp increase of equilibrium pressure was observed at high CO2 compositions. The CO2 solubility in ionic liquids increased with the increase of the total length of alkyl chains attached to the ammonium cation of the ionic liquids. The experimental data for the CO2+ionic liquid systems were correlated using the Peng-Robinson equation of state. Korean Institute of Chemical Engineers, Seoul, Korea, 2012 Solubility nationallicence Carbon Dioxide nationallicence Ionic Liquid nationallicence Ammonium nationallicence Correlation nationallicence Peng-Robinson Equation of State nationallicence Nam Sang Department of Chemical Engineering and Nano-Bio Technology, Hannam University, 461-6, Jeonmin-dong, Yuseong-gu, 305-811, Daejeon, Korea aut Lee Byung-Chul Department of Chemical Engineering and Nano-Bio Technology, Hannam University, 461-6, Jeonmin-dong, Yuseong-gu, 305-811, Daejeon, Korea aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/2(2013-02-01), 474-481 0256-1115 30:2<474 2013 30 11814 https://doi.org/10.1007/s11814-012-0178-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-012-0178-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nam Sang Department of Chemical Engineering and Nano-Bio Technology, Hannam University, 461-6, Jeonmin-dong, Yuseong-gu, 305-811, Daejeon, Korea aut NATIONALLICENCE 700 1- Lee Byung-Chul Department of Chemical Engineering and Nano-Bio Technology, Hannam University, 461-6, Jeonmin-dong, Yuseong-gu, 305-811, Daejeon, Korea aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/2(2013-02-01), 474-481 0256-1115 30:2<474 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer