Propane/Propylene Separation by Simulated Moving Bed I. Adsorption of Propane, Propylene and Isobutane in Pellets of 13X Zeolite

The separation of propane‐propylene mixture is the most energy consuming operation in the petrochemical industry. Various studies have been investigated to relieve the cryogenic distillation ordinarily used for this separation, and the adsorption technology appeared to be a promising option. Considering the encouraging results obtained by cyclic adsorption processes and notably by pressure swing adsorption, the simulated moving bed (SMB) has...