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A three-step design methodology was developed for applying ideal cascade theory to separate a dilute binary gas mixture by pressure swing adsorption (PSA). This methodology was tested via simulation and applied to the enrichment of 14CO from 1 to 20 ppm in a mixture of its own isotopes. It was assumed that the presence and slight enrichment of 13CO did not affect the performance of 14CO throughout...
Simulations of three different 3-bed 3-step pressure swing adsorption (PSA) cycles were carried out to study the enrichment and recovery of 14CO from an isotopic mixture of 14CO, 13CO and 12CO using NaX zeolite. Each PSA cycle included feed pressurization/feed (FP/P), heavy reflux (HR) and countercurrent depressurization (CnD) steps; they differed only in the way the CnD step was carried out: PSA...
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