Current status of CO2 capture with ionic liquids: Development and progress

Alkylimidazolium-based ionic liquids with tailored anions and cations for CO2 capture

“…14,15 Given that ILs are generally applied in diluted forms with viscosities that are not appreciably higher than water's, the high viscosity issue with ILs can be resolved. 11 The low vapor pressure, low volatility, and high stability of ILs in comparison to the solvents already in use are some of the key characteristics that facilitate their usage for CO 2 absorption. The efficiency and cost of the CO 2 absorption process are signicantly affected by the high volatility and high heat degradation of conventional employed solvents such as monoethanolamine, etc.…”

“…The ability to regenerate the ILs at 1 bar and higher temperatures potentially decrease the cost of the CO 2 capture as compared to the high cost of the conventional solvents due to signicant equipment expenses connected with vacuum regeneration operations. 11,16 Previous research comparing the ILs process's cost and performance indicates that this technology is promising. Furthermore, the potential of ILs to be tailored could be potentially utilized in the development and design of inexpensive, and, thermally stable ILs with high CO 2 capture capacity and selectivity.…”

Novel hybrid QSPR-GPR approach for modeling of carbon dioxide capture using deep eutectic solvents

“…Ionic liquids (ILs) have gained significant attention as possible solvents for CO 2 removal thanks to their distinctive and appealing characteristics. 11 While the surprising properties of ILs have made them highly sought-after solvents, their expensive nature poses a significant challenge. The complex synthesis and purification processes involved in IL production require specialized equipment and expertise, increasing the overall expense.…”

New Supercritical Method to Capture CO2 from N2 and H2 Gas Mixture in Ammonia/Urea Production Plants

“…Although there are different CCS schemes, reducing the cost of carbon dioxide capture is the most important issue for the CCS process to gain acceptance from the energy industry point of view. There are many methods for CO 2 separation such as absorption, − adsorption, − cryogenic separation, − and membrane technology. − The captured CO 2 is used in various industrial and commercial processes, ,− e.g., urea, liquid fuel, and chemical production. The main focus for CO 2 capturing is on point source streams from energy and emission intensive industries because these sources produce high CO 2 emissions as byproduct.…”