Experimental investigation of carbon dioxide solubility in the deep eutectic solvent (1 ChCl + 3 triethylene glycol) and modeling by the CPA EoS
作者： Reza Haghbakhsh , Sona Raeissi , Alireza Shariati , Mehdi Keshtkar
DOI: 10.1016/J.MOLLIQ.2021.115647
关键词:
摘要: Abstract CO2 solubilities in the deep eutectic solvent (1 choline chloride +3 triethylene glycol) were measured at four temperatures of 303.15, 313.15, 323.15 and 333.15 K pressures up to 30 bars. Measurements carried out a newly designed, built validated high pressure solubility apparatus. The data modeled by cubic plus association (CPA) Soave-Redlich-Kwong (SRK) equations state, with AARD% values 5.52% 7.30% for CPA SRK EoSs, respectively, showing good correlative ability both models. Furthermore, calculating standard Gibbs free energies dissolution, enthalpies dissolution entropies infinite dilution, we found that process is nonspontaneous exothermic, - DES interactions being stronger interactions. solution becomes less chaotic reaches higher degree order liquid phase after CO2.
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