Energy-efficient electrochemical CO2 capture from the atmosphere


Event Technical Proceedings of the 2009 Clean Technology Conference and Trade Show


Technical Publications
May 3rd 2009
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 [1]. 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 [2]. [1] Karl Littau et al., "An 'Atmospherically Healthy' Recipe for Carbon-Neutral Fuels: A synthetic fuel made from sunlight, CO2, and water," CTSI Clean Technology & Sustainable Industries Conference & Trade Show, Boston, MA, June 1-5, 2008. [2] Karl Littau, "System and method for recovery of CO2 by aqueous carbonate flue gas capture and high efficiency bipolar membrane electrodialysis," patent pending.


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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