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00925njm 22002777a 4500 dc Ayuso Sebastián, Miguel Aythami author García González, Julián author Mateo Fernández, Sara author Rodríguez Somolinos, Francisco author Belinchón, Alejandro author Navarro, Pablo author Palomar, José author 2023-06 Obtaining aromatic hydrocarbons from refinery streams is one of the most concerning issues that the petrochemical industry currently faces. Now, the presence of azeotropes between aromatic and nonaromatic compounds in gasoline fractions demands the employment of organic solvents such as sulfolane to obtain benzene, toluene, and xylenes by liquid–liquid extraction. Several alternatives have been evaluated during the last decades to overcome the drawbacks related to the use of these solvents, being their replacement with ionic liquids one of the most promising so far. Nonetheless, the ionic liquids’ complex synthesis routes and lack of availability at large production still limit their industrial implementation. Recently, cyclic carbonates have emerged as a double solution related to CO2 fixation and designer solvents availability, the latter showing interesting extractive and physical properties which could reduce the environmental impact associated with the use of conventional solvents and ionic liquids in aromatic extraction processes. However, the availability of experimental data is scarce and only predictive models are available. In this work, firstly, the extractive properties of five cyclic carbonates (propylene, vinylethylene, glycerol, ethylene, and vinylene carbonates) were experimentally determined for wide composition ranges of several ternary systems {aliphatic/methylcycloalkane + aromatic + cyclic carbonate}. Afterwards, the NRTL, UNIFAC, and COSMO-SAC models, were used to fitor predict the liquid–liquid equilibria of those ternary systems. Finally, the aromatic extraction process from reformer gasoline with propylene carbonate as solvent was simulated in Aspen Plus with the COSMO-SAC model, comparing its performance with that of sulfolane to check its suitability at process scale. Miguel Ayuso, Sara Mateo, Alejandro Belinchón, Pablo Navarro, José Palomar, Julián García, Francisco Rodríguez, Cyclic carbonates as solvents in the dearomatization of refinery streams: Experimental liquid–liquid equilibria, modelling, and simulation, Journal of Molecular Liquids, Volume 380, 2023, 121710, https://doi.org/10.1016/j.molliq.2023.121710. 0167-7322 10.1016/j.molliq.2023.121710 https://hdl.handle.net/20.500.14352/130868 https://doi.org/10.1016/j.molliq.2023.121710 https://www.sciencedirect.com/science/article/pii/S0167732223005135 Cyclic carbonates as solvents in the dearomatization of refinery streams: Experimental liquid–liquid equilibria, modelling, and simulation