METHOD AND SYSTEM FOR LIGHT OLEFIN SEPARATION

METHOD AND SYSTEM FOR LIGHT OLEFIN SEPARATION

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 (20, 54) and a membrane unit (12, 64) to produce an olefin stream comprising at least 92 mol%...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU, Chunqing, WERBA, Gregory, ZHOU, Lubo, PHAM, Trung, FREY, Stanley J, LISKEY, Carl W, ALBO, Simon E
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung: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 (20, 54) and a membrane unit (12, 64) to produce an olefin stream comprising at least 92 mol% olefin. In an embodiment of the invention where the membrane unit (12, 64) is placed downstream from the column which can produce propylene streams at polymer grade of over 99.5 mol% propylene. The most suitable drawing: FIG. 1.