PROCESS TO REMOVE PRODUCT ALCOHOLS FROM FERMENTATION BROTH BY MULTISTEP FLASH EVAPORATION

The present invention relates to processes to remove butanol and other product alcohols from a fermentation broth employing vacuum vaporization. The method for removing a product alcohol from a fermentation broth comprises the following steps: (a) the vaporisation of a fermentation broth or a portio...

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Bibliographische Detailangaben
Hauptverfasser:	SYLVESTER, ROBERT W, HURLEY, AIDAN, ZAHER, JOSEPH J, BARR, STEVEN CHRISTOPHER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	FODDER FOODS OR FOODSTUFFS HUMAN NECESSITIES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to processes to remove butanol and other product alcohols from a fermentation broth employing vacuum vaporization. The method for removing a product alcohol from a fermentation broth comprises the following steps: (a) the vaporisation of a fermentation broth or a portion thereof to form one or more vapor streams, wherein vaporizing comprises: (i) vaporizing the fermentation broth or a portion thereof by one or more pre-flashes; and (ii) vaporizing the fermentation broth or a portion thereof by a flash; wherein the vapor streams comprise one or more components selected from product alcohol, water, and carbon dioxide; and (b) recovering the product alcohol from the one or more vapor streams or a portion thereof. Procédés pour éliminer le butanol et autres alcools en produit d'un bouillon de fermentation par vaporisation sous vide.