DEVOLATILIZATION APPARATUS AND PROCESS

Embodiments of the invention provide an apparatus or process for devolatilization of flowable materials (such as molten polymers with entrained or dissolved solvent or unreacted monomers or comonomers) using a plate heater having heating channels, the design or operation of which heating channels ma...

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Bibliographische Detailangaben
Hauptverfasser:	DIXIT, RAVINDRA S, TAYLOR, CRAIG S, SHIRTUM, ROBERT P
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES BLASTING CANDLES CHEMISTRY COMPOSITIONS BASED THEREON DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION DETERGENT COMPOSITIONS DETERGENTS FATTY ACIDS THEREFROM FOODS OR FOODSTUFFS HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING HUMAN NECESSITIES LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL RECOVERY OF GLYCEROL RESIN SOAPS SEPARATION SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY ASINGLE OTHER SUBCLASS SOAP OR SOAP-MAKING THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING USE OF SINGLE SUBSTANCES AS DETERGENTS WEAPONS
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Beschreibung
Zusammenfassung:	Embodiments of the invention provide an apparatus or process for devolatilization of flowable materials (such as molten polymers with entrained or dissolved solvent or unreacted monomers or comonomers) using a plate heater having heating channels, the design or operation of which heating channels maintains the flowable material above its bubble point pressure during passage through a larger first zone and then induces flashing in, or downstream of, a smaller second zone of the heating channel. The apparatus enables a higher throughput per heating channel while achieving equivalent or better devolatilization, as compared to current devolatilization apparatus. Des modes de réalisation de l'invention concernent un appareil ou un procédé pour la dévolatilisation de matériaux fluides (tels que des polymères fondus avec un solvant entraîné ou dissous ou des monomères ou comonomères n'ayant pas réagi) en utilisant un chauffage à plaques ayant des canaux de chauffage, la conception ou le fonctionnement des canaux de chauffage maintient le matériau fluide au-dessus de sa pression de point de bulle pendant le passage à travers une première zone plus grande et induit ensuite le traitement flash dans, ou en aval de, une deuxième zone plus petite du canal de chauffage. L'appareil permet d'atteindre un débit plus élevé par canal de chauffage tout en produisant une dévolatilisation équivalente ou meilleure, par rapport à un appareil de dévolatilisation actuel.