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2006-07 Seminars


Power Plant Economics

John Kitchin
Assistant Professor
CMU Department of Chemical Engineering

Abstract
CO2 capture and sequestration will be required in the future to limit the impact of CO2 emissions on the global environment. The massive scale of the capture requirements makes the energetic efficiency of the system and the recycling of reagents two of the most critical parameters in evaluating competing systems. The equilibrium efficiencies of electrochemical processes are very high. Any operating capture process would not operate under equilibrium conditions, however, and consequently would have a lower overall efficiency than expected from simple thermodynamics. We will discuss an electrochemical CO2 capture system we have been investigating as well as some alternative electrochemical schemes and the technology developments that will be necessary to make them competitive with existing technologies.