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Most of our energy consumption proceeds from the use of fossil fuels and the production of natural gas. However, the presence of impurities in this gas, like CO2, makes treatment necessary to avoid further concerns, such as greenhouse gas emissions, the corrosion of industrial equipment, etc.; thus, the development of CO2 capture and storage procedures is of the utmost importance in order to decrease CO2 production and mitigate its contribution to global warming. Among the CO2 capture processes available, three separation technologies are being used to achieve this goal: absorption, adsorption and membranes. To overcome some limitations of these methodologies, the joint use of these technologies with ionic liquids is gaining interest. The present work reviewed the most recent developments (for 2024) in CO2 capture using ionic liquids coupled to absorption-, adsorption- or membrane-based processes.
Alguacil et al. (Fri,) studied this question.