How to Detect Possible Pitfalls in ePC-SAFT Modeling. 2. Extension to Binary Mixtures of 96 Ionic Liquids with CO2, H2S, CO, O2, CH4, N2, and H2

• The occurrence of numerical pitfalls has been pointed out for the models of equation of state, including the statistical associating fluid theory (SAFT)-based. Following our previous work on pure ILs when modeling with ePC-SAFT, this work extended the research to the IL–gas mixtures, in which the associating term was derived for predicting the critical point with PC-SAFT, and a scheme for detecting a pitfall in IL–gas mixtures was developed. Then, the scheme was applied to detect the pitfall occurrence in IL–gas (gas = CO2, H2S, CO, O2, CH4, N2, and H2) systems, which are commonly encountered in developing IL-based CO2 separation technologies. It shows that a pitfall occurs only in [C8mpy][BF4]–gas (CO2, H2S, CO, O2, CH4, N2, and H2) among all ILs considered in the temperature and pressure range of interest.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Energiteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Energy Engineering (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Kemiteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Chemical Engineering (hsv//eng)

Nyckelord

Energiteknik

Energy Engineering

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