화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터)
권호 25권 1호, p.623
발표분야 열역학(Thermodynamics)
제목 High pressure Phase behavior of CO2 in bis(pentafluoroethylsulfonyl)imide(BETI) anion based ionic liquids : [EMIM][BETI]. [BMIM][BETI], [HMIM][BETI]
초록 We measured the CO2 solubility in three different [BETI] anion-based ionic liquids: 1-ethyl-3-methylimidazolium bis(pentafluoroethylsulfonyl)imide ([EMIM][BETI]), 1-butyl-3-methylimidazolium bis(pentafluoroethylsulfonyl)imide ([BMIM][BETI]), and 1-hexyl-3-methylimidazolium bis(pentafluoroethylsulfonyl)imide ([HMIM][BETI]) in the experimental ranges of 0.08–29.27 MPa and 303.2–373.2 K. 
We determined the CO2 solubility by measuring the bubble-point pressure for a fixed CO2 mole fraction, and the order of intensity for CO2 absorption ability was [HMIM][BETI] > [BMIM][BETI] > [EMIM][BETI].  
The Peng-Robinson equation of state (PR-EoS), the conventional van der Waals one fluid mixing rule, and the modified Lydersen-Joback-Reid method were used to correlate and calculate the experimental data. The overall average absolute deviations of pressure (AAD-P) were 0.0204, 0.0275, and 0.0227 for CO2 + [EMIM][BETI], CO2 + [BMIM][BETI], and CO2 + [HMIM][BETI] systems, respectively.
저자 박광우, 임종성
소속 서강대
키워드 열역학; 상평형
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