Abstract

This study demonstrates enhanced CO2 desorption from nano-dispersed “Na2O”/γ-Al2O3 using a low moisture content purge gas. As little as 2 mol% moisture (generated at the vapor pressure of water at 20 °C) present in an inert purge gas enhances the amount and rate of CO2 desorbed over a series of temperatures relative to a dry purge. Multi-cycle aging tests of 317 h, at various desorption conditions, confirmed the stability of system efficiency with the potential for energy savings in avoiding steam production commonly used for CO2 desorption.

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