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Advisor(s)
Abstract(s)
The sorption equilibrium of CO2 and CH4 in binderless beads of 13X zeolite has been investigated between 313 and 373 K and pressure up to 4 atm. The amount adsorbed of CO2 and CH4 is around 5.2 mmol/gads and 1.2 mmol/gads, respectively, at 313 K and 4 atm. Comparing these values with the ones in literature the value of CO2 is 20% higher than in CECA 13X binder pellets. The crystal diffusivity of CO2 measured experimentally by the ZLC technique is 5.8×10-15 m2/s and 1.3×10-15 m 2/s at 373 and 313 K, respectively. These values are in the same order magnitude of the ones measured by a frequency response and pulse chromatography techniques reported in literature. The ZLC desorption curves for CH4 were measured under an equilibrium regime and no kinetic data is obtained.
Description
Keywords
Carbon dioxide Zeolite 13X Adsorption
Citation
Silva, José A.C.; Schumann, Kristin; Rodrigues, A.E. (2012). Sorption of carbon dioxide on binderless beads of 13X. In AIChE Annual Meeting, Conference Proceedings. Pittsburgh, EUA. ISBN 978-081691073-1