Document Type : Review Paper

Authors

1 chemical engineering department, university of technology

2 university of technology-chemical engineering department

3 College of Engineering-University, Diyala, Iraq

Abstract

One of the most promising new types of ecologically friendly solvents is deep eutectic (DES) solvents. The oil and gas industry is the primary subject of this quick introduction of DES applications. Readers are encouraged to take into account other DES applications in various fields of study. Ideally, this research would encourage industry scientists and problem solvers to choose more environmentally friendly alternatives in their applications as a result of their findings. To investigate atmospheric carbon absorption in choline chloride: ethylene glycol at various pressures. Ab initio molecular dynamics simulations in the isothermal–isobaric environment at pressures of 1.5 MPa and 6 MPa as well as at the appropriate experimental densities. Carbon dioxide absorption in the solvent has a significant anion and hydrogen bonding donor effect, as well as a moderate cation effect, according to the structural investigation. Instead of collaborating, The anion and the hydrogen bond donor (ethylene glycol) are competing for control of the carbon dioxide interaction. The ethylene glycol–CO2 interaction dominates at lower pressures, whereas the chloride–CO2 interaction takes over as the dominant interaction at higher pressures. Since this discovery, the CO2 absorbent can be employed in the deep eutectic solvent in the same way as ionic liquids do, but a donor can be utilized in the hydrogen bond.

Keywords