PROCESS AND APPARATUS FOR PREPARING PURIFIED STYRENE COMPOSITION USING DIVIDED-WALL COLUMN AND CRYSTALLIZATION UNIT

PROCESS AND APPARATUS FOR PREPARING PURIFIED STYRENE COMPOSITION USING DIVIDED-WALL COLUMN AND CRYSTALLIZATION UNIT

A method for preparing a purified styrene composition includes providing a crude hydrocarbon composition containing styrene, subjecting the crude hydrocarbon composition to a distillation in a divided-wall column to produce an overhead hydrocarbon stream, a bottom hydrocarbon stream and a side hydro...

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Bibliographische Detailangaben
Hauptverfasser: KHANDELWAL, Rahul, GENTRY, Joseph C, TEMMEL, Erik, STEPANSKI, Manfred
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 method for preparing a purified styrene composition includes providing a crude hydrocarbon composition containing styrene, subjecting the crude hydrocarbon composition to a distillation in a divided-wall column to produce an overhead hydrocarbon stream, a bottom hydrocarbon stream and a side hydrocarbon stream and subjecting the side hydrocarbon stream to at least one crystallization step to obtain a purified styrene composition.