Method and system for light olefin separation
AssigneeUop LLC
InventorsChunqing Liu, Lubo Zhou, Stanley J. Frey, Gregory R. Werba, Carl W. Liskey, Simon E. Albo, Trung Pham
Life of this patent
Estimating the term…
Abstract
A process is provided for separation of light olefins and paraffins and particular for the separation of propylene and propane comprising sending at least one olefin/paraffin stream to a distillation column and a membrane unit to produce an olefin stream comprising at least 92 mol % olefin. In an embodiment of the invention where the membrane unit is placed downstream from the column which can produce propylene streams at polymer grade of over 99.5 mol % propylene.
Claims20
A process for separation of olefin and paraffin mixtures comprising sending at least one hydrocarbon stream to a distillation column and a membrane unit to produce an olefin stream comprising at least 92 mol % olefin.
Dependencies are inferred from the claim text.