Post-combustion, CO2 is removed from flue gas by passing it through a liquid amine which dissolves the CO2.

FORBES: Carbon Capture And Storage: Yea Or Nay?

Initial testing at the PC4 began recently when researchers used a solvent called monoethanolamine (MEA) to capture CO2 from a slipstream of flue gas from the plant.

FORBES: Still Chasing Clean Coal, US Opens Carbon Capture Lab

The most efficient way we have now to capture CO2 is to remove it from flue gas as the emissions escape.

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