Abstract
Recovery of carbon dioxide from a binary mixture (N2/CO2) simulating flue gas was performed by pressure swing adsorption (PSA) using zeolite-X. One PSA process consists of three adsorption beds. The process was tested by varying the operation parameters: pressures of adsorption and vacuum evacuation steps. As a typical result, a high purity CO2 (~99%) can be produced with recoveries of 20% and 53% from feed gases containing 15 and 25 vol.% CO2, respectively. By the other process of two stage PSA, CO2 can be concentrated from feed gas to a product of 99% with much higher recovery.
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