Patent ID: 8585802

Claim:
A method of recovering carbon dioxide (CO 2 ) in a liquid state from a high-pressure gas stream, said method comprising: (a) cooling and partially condensing a high-pressure feed gas stream to thereby provide a condensed CO 2 -rich fraction and an uncondensed CO 2 -lean fraction; (b) recovering a CO 2 -rich liquid stream from at least a portion of said uncondensed CO 2 -lean fraction wherein said recovering comprises one or more of the following steps— (i) absorbing CO 2 from said uncondensed CO 2 -lean fraction, and/or (ii) adsorbing CO 2 from said uncondensed CO 2 -lean fraction, and/or (iii) freezing CO 2 from said uncondensed CO 2 -lean fraction; (c) combining at least a portion of said CO 2 -rich liquid stream recovered in step (b) with at least a portion of said condensed CO 2 -rich fraction to thereby provide a combined CO 2 -rich stream; and (d) fractionating at least a portion of said combined CO 2 -rich stream to separate non-CO 2 components therefrom and thereby provide a purified CO 2 -rich liquid stream, wherein said high-pressure feed gas stream has a pressure of at least 60.4 psia, wherein said condensed CO 2 -rich fraction and said combined CO 2 -rich stream are liquid streams, wherein said purified CO 2 -rich liquid stream has a pressure of at least 100 psia.