Technology options for capturing CO{sub 2}

Concerns about global climate change have prompted interest in reducing or eliminating the carbon dioxide emissions of fossil fuel-fired power plants. Here is a guide to the technology and economics of three CO{sub 2} capture methods: postcombustion separation of CO{sub 2} from flue gas, oxygen-fired combustion and precombustion capture (suitable for new coal-fired capacity, including IGCC plants). 5 figs., 1 tab.