Separations With Ionic Liquid Solvents

摘要

Disclosed are systems and methods which provide a process stream comprising a gaseous component, capture the gaseous component from the process stream by an ionic liquid solvent of a separator, and recover a captured gaseous component from the ionic liquid solvent in a regenerator. A second gaseous component from the process stream may be captured by the ionic liquid solvent of the separator, and the second gaseous component may be recovered from the ionic liquid solvent in the regenerator. Alternatively, the second gaseous component from the process stream may be uncaptured by the ionic liquid solvent, and the uncaptured second gaseous component may be recovered from a membrane unit.

主权项

1. A method comprising:
providing a process stream comprising an olefin; capturing at least a portion of the olefin from the process stream by an ionic liquid solvent; and recovering at least a portion of a captured olefin from the ionic liquid solvent, wherein the ionic liquid solvent has a total solubility of the olefin greater than the total solubility of the olefin in [emim][Tf2N]-Ag.