Absorption separation of fluorinated refrigerant gases with ionic liquids: Equilibrium, mass transport, and process design

• F-gas + IL mixture equilibrium and mass transport properties are reviewed. Influence of molecular structure in solubility selectivity is discussed. Design absorption, extractive distillation membrane separations analyzed. Extensive database containing 5000+ data provided. Interest recovering reclaiming refrigerant gases growing as a consequence increasing concern about the high global warming potential some hydrofluorocarbons (HFCs). However, advanced separation processes, like distillation, required to selectively separate azeotropic close-boiling mixtures. In this regard, ionic liquids (ILs) arise promising entrainers because their favorable properties, including nonvolatility good HFC selectivity. The aim review become reference text for research design novel processes mixtures fluorinated based on use ILs. We include an extensive compilation publications equilibrium, transport, absorption related ILs separate, not only most relevant refrigerants employed nowadays, namely, HFCs, hydrofluoroolefins, hydrochlorofluoroolefins, but also other families, such chlorofluorocarbons, hydrochlorofluorocarbons, perfluorocarbons. UC-RAIL provided Supplementary Information compiles more than 5000 points that comprehensively analyzed focusing process design. Finally, we provide set directions lead recovery gases, shift refrigeration air conditioning sector towards circular economy.