Abstract
CO2 capture is an inevitable option for carbon reduction, and adsorption-based CO2 capture technology offers a promising way to lowering the energy cost of the most mature amine-scrubbing method. Most of the recent studies focused on pursuing materials with high adsorption capacities, but desorption performance as well as recovery of high purity CO2 are long been overlooked. In this study, four commercial zeolites were screened for CO2 capture from simulated flue gas, among which, 5 A zeolite was selected to systematically investigate the desorption behavior. A more practically available temperature-swing procedure was proposed for desorption and regeneration of the material, and a CO2 stream of over 70% purity with 90% recovery can be achieved by only one-stage adsorption.
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