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Energy-efficient electrochemical CO2 capture from the atmosphere


We discuss our experimental progress toward energy-efficient electrochemical CO2 separation from the atmosphere. First we will discuss the latest results from an ongoing project that uses a modified-fuel-cell-based approach for CO2 separation. Using this approach, we have demonstrated CO2 separation from atmospheric concentrations with an energy consumption of less than 400 kJ/mol(CO2). We will also discuss progress on a second approach to electrochemical CO2 separation: a novel pH-controlled, high pressure electrodialysis system that allows energy-efficient, high-rate CO2 separation from the atmosphere.

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Eisaman, M. D.; Schwartz, D. E.; Amic, S.; Larner, D. L.; Zesch, J.; Torres, F.; Littau, K. Energy-efficient electrochemical CO2 capture from the atmosphere. Technical Proceedings of the 2009 Clean Technology Conference and Trade Show. 2009 May 3-7; Houston, TX.


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