Article ID Journal Published Year Pages File Type
6660672 The Journal of Chemical Thermodynamics 2015 8 Pages PDF
Abstract
For thermodynamic modelling, a new equation of state (PR-TS EoS) is extended by combining the Peng-Robinson (PR) equation of state as a cubic term for non-specific energy contribution and the Two-State Association Model (TSAM) for association energy contribution based on the frame of the cubic plus equation of state. Furthermore, the PR-TS EoS is applied to correlate the new experimental data of this work. To model the ternary (CO2 + MDEA + [bmim][acetate]) system, the parameters of the PR-TS EoS are first adjusted for the pure components. Subsequently, the solubility of CO2 in pure [bmim][acetate] is correlated so that the binary molecular interaction parameters for this binary sub system are optimised. Finally, the equilibrium solubility of CO2 in ternary mixture of {MDEA + [bmim][acetate]} correlates with the per cent average absolute deviation (AAD%) of 11.78 between the calculated and experimental partial pressure of CO2.
Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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