Methods are provided for the selective removal of CO.sub.2 from a
multicomponent gaseous stream to provide a CO.sub.2 depleted gaseous
stream. In practicing the subject methods, an initial multicomponent
gaseous stream that includes a gaseous CO.sub.2 hydrate promoter is
contacted with an aqueous fluid, e.g., CO.sub.2 nucleated water, in a
hydrate formation reactor under conditions of selective CO.sub.2 clathrate
formation to produce a CO.sub.2 clathrate slurry and CO.sub.2 depleted
gaseous stream. Also provided are systems that find use in practicing the
subject methods. The subject methods and systems find use in a variety of
applications where it is desired to selectively remove CO.sub.2 from a
multicomponent gaseous stream.
