Matthew L. Wald
"Three technologies lead the pack for capturing the carbon dioxide in coal while also harnessing the energy. On Thursday, the Energy Department endorsed the “oxyburn” strategy, which involves filtering the nitrogen out of air and burning coal in pure oxygen, with a resulting flue gas that is almost pure carbon dioxide; it will attempt that in Illinois.
The other two technologies involve scrubbing the carbon dioxide out of flue gases in coal that is conventionally burned, something that American Electric Power is trying out at a decades-old plant in West Virginia, and cooking the coal into a hydrocarbon gas and taking the carbon dioxide out before combustion, which Duke Energy is planning to do in Edwardsport, Ind."
The other two technologies involve scrubbing the carbon dioxide out of flue gases in coal that is conventionally burned, something that American Electric Power is trying out at a decades-old plant in West Virginia, and cooking the coal into a hydrocarbon gas and taking the carbon dioxide out before combustion, which Duke Energy is planning to do in Edwardsport, Ind."