Thermodynamic modeling of gas solubility in ionic liquids using equations of state
| Autor: | Cardoso Lucas Oliveira, Conceição Bruno Santos, Paredes Márcio Luis Lyra, Mattedi Silvana |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Chemical Industry and Chemical Engineering Quarterly, Vol 29, Iss 3, Pp 209-224 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1451-9372 2217-7434 22041702 |
| DOI: | 10.2298/CICEQ220417028C |
| Popis: | This work aimed at the thermodynamic modeling of gas solubility in ionic liquids (ILs) using the Soave-Redlich-Kwong (SRK), cubic-plus-association (CPA), and perturbed-chain statistical associating fluid theory (PC-SAFT) equations of state. Wherefore, the routines were developed for the parameterization of ILs. Then, the ILs were implemented in the Aspen plus simulator to evaluate the equations of state and explore the phase equilibrium data with the predictive equations and the correlation of the binary interaction parameter. Hence, it was verified the correlation of the density and speed of sound curves presented limitations to correcting the slope of the curves of pure ILs. Nonetheless, the PC-SAFT with the 4C associative scheme demonstrated a better fit for the thermophysical properties. As for the prediction of phase equilibrium for the [EMIM][TfO], the PC-SAFT with the 2B scheme showed a better fit with CO2, while the CPA with the 2B scheme presented the best result for H2S. For [OMIM][NTf2], the PC-SAFT with the 1A scheme showed better results with CO2, and the CPA with the 2B scheme showed the lowest deviation with H2S. |
| Databáze: | Directory of Open Access Journals |
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