Prediction of speed of sound and specific heat capacity of ionic liquids using predictive SAFT-based equation of state
Chemical Engineering Science, ISSN: 0009-2509, Vol: 265, Page: 118246
2023
- 9Citations
- 7Captures
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Article Description
In this work, the predictive PC-SAFT EoS has been developed to predict the speed of sound, the isochoric and isobaric heat capacity of ionic liquids (ILs) over a wide range of pressures and temperatures. In this new methodology, the segment number and diameter of ILs have been estimated using the surface area and molecular volume of the UNIFAC model. The segment energy and association energy parameters have been obtained using an inverse relationship between dispersion/association energy and segment diameter. The results show that the predictive PC-SAFT model can predict the specific isochoric and isobaric heat capacity of ILs up to high pressure, accurately. In the case of the speed of sound, the model performance is acceptable by considering using no adjustable model parameters. To check the model capability, the new model results have been compared to the electrolyte PC-SAFT EoS.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0009250922008314; http://dx.doi.org/10.1016/j.ces.2022.118246; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85140995286&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0009250922008314; https://dx.doi.org/10.1016/j.ces.2022.118246
Elsevier BV
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