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John Wheeldon of EPRI says that in order to keep electricity affordable it will be necessary to keep burning coal and to solve the CO2 capture and storage problems. EPRI has proposed Ultragen with use of 1400°F supercritical boiler technology. He also discussed carbon capture technologies. The regeneration heat for the solvent used for capture is important. MEA requires 4.2 GJ/tonne of CO2 compared to ammonia technologies which would be as low as 2.5 GJ/tonne. |
