System and method for solvent recovery in a batch fluidized bed process

A system and method for solvent recovery in a batch fluidized bed process is provided. The disclosed fluidized bed system includes a fluidized bed vessel holding a batch of solvent-containing product; an intake circuit supplying an inert fluidizing gas; an effluent circuit adapted to remove the solv...

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Bibliographische Detailangaben
Hauptverfasser:	BILLINGHAM JOHN FREDRIC, CHENG ALAN, NADI ARUP
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A system and method for solvent recovery in a batch fluidized bed process is provided. The disclosed fluidized bed system includes a fluidized bed vessel holding a batch of solvent-containing product; an intake circuit supplying an inert fluidizing gas; an effluent circuit adapted to remove the solvent containing inert fluidizing gas; a first recycle circuit coupling the effluent circuit to a solvent recovery means; a second recycle circuit directly coupling the effluent circuit to the intake circuit and a flow control valve operatively disposed to divide the effluent between the first recycle circuit and the second recycle circuit based on the operating regime of the fluidized bed process. The disclosed embodiments further include a liquid nitrogen source coupled to the second recycle circuit to provide the make-up inert gas and enhanced cooling of the effluent based on the operating regime of the fluidized bed process.