Modified ets-10 zeolites for olefin separation

Details Modified ets-10 zeolites for olefin separation Modified ets-10 zeolites for olefin separation

B - Operations, Transporting

01

D

B01D 53/047 (2006.01) B01D 53/72 (2006.01) B01J 29/00 (2006.01)

Patent

CA 2618267

An as prepared Na-ETS-10 zeolite was modified by ion exchange with a mono-, di-, or tri-valent cation and mixtures thereof. Several of the modified ETS-10 zeolites showed improved pressure swing capacity during the selective adsorption of ethylene from an ethylene/ethane mixture, relative to Na-ETS-10, although the selectivity of adsorption decreased. Modification with Ba2+ and Ba2+/H+ provided modified ETS-10 zeolite adsorbents having a good balance of selectivity and pressure swing capacity for the separation of ethylene/ethane mixtures, making them useful adsorbents for PSA processes.

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