This study reports the first investigation of using a ceramic-carbonate dual-phase membrane to electrochemically separate CO2 from a simulated natural gas. The CO2 permeation flux density was systematically studied as a function of temperature, CO2 partial pressure and time. As expected, the flux density was observed to increase with temperature and CO2 partial pressure. Long-term stability test showed that flux density experienced an initial performance-improving “break-in” period followed by a slow decay. Post-test microstructural analysis suggested that a gradual loss of carbonate during the test could be the cause of the flux-time behavior observed.
Published in Journal of The Electrochemical Society, Volume 162, Issue 43, 2015, pages E43-E46.
© The Electrochemical Society, Inc. 2015. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Journal of The Electrochemical Society.
Publisher’s Version: http://dx.doi.org/10.1149/2.0481504jes
Tong, J., Zhang, L., Fang, J., Han, M., & Huang, K. (24 January 2015). Electrochemical Capture of CO2 from Natural Gas using a High-Temperature Ceramic-Carbonate Membrane. Journal of The Electrochemical Society, 162 (4), E43 – E46. http://dx.doi.org/10.1149/2.0481504jes