Patent ID: 6720359
Filing Date: 2004-04-13
Classification: C10G,Y02C,Y02P

Abstract:
A process for removing CO2 from a CO2-containing gas, the process comprising:a) scrubbing CO2 from a CO2-containing gas using an aqueous phase liquid, forming a CO2-enriched aqueous phase, wherein the aqueous phase liquid is at a pressure greater than about atmospheric pressure and wherein the aqueous phase liquid has a pH of at least about 7.0 before scrubbing; and b) disposing of the CO2-enriched aqueous phase in at least one of a marine environment, a terrestrial formation or combination thereof, wherein disposal of the CO2-enriched aqueous phase is done at a temperature, pressure, and pH sufficient to ensure that about 75% or more of the CO2 removed from the CO2-containing gas remains dissolved in the aqueous phase.