Patent ID: 9017455
Filing Date: 2015-04-28
Classification: B01D,Y02A,Y02C

Abstract:
1. A method for the removal of CO 2 from a gaseous mixture, comprising (a) contacting the gaseous mixture with one or more compounds represented by the structure of the following Formula I, Formula II, or Formula III: wherein R i) H, ii) halogen, iii) —CH iv) —CH v) a C vi) a C vii) —(CH wherein any of R (b) removing CO 2 from the mixture; wherein the gaseous mixture is contacted with one or more compounds represented by the structure of Formula I, Formula II, or Formula III in the presence of an anionic liquid selected from the group consisting of (1) ionic liquids that comprise a thiazolium, isothiazolium or sulfonium cation; and (2) an ionic liquid that comprises a cation selected from the group consisting of pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, oxazolium, triazolium, tetrazolium, isoxazolium, quinolinium, isoquinolinium, indazolium, benzoimidazolium, benzotriazolium, ammonium, phosphonium, and guanidinium cations and that are represented by the structure of a formula as follows: wherein: (K) R (viii) —CH (ix) —CH (x) a C (xi) a C (xii) —(CH (L) optionally, at least two of R (M) provided that at least one of R