VERFAHREN ZUR TRENNUNG DER KOMPONENTEN EINES FLUESSIGKEITSGEMISCHES VONEINANDER

The process separates components of a liquid mixture in which one or more components to be extracted are highly diluted and these components can be precipitated by lowering the temperature. In particular, the process is used to extract hydrocarbons, for example ethanol, from mixtures which have been...

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Bibliographische Detailangaben
Hauptverfasser:	KASEKAT,JUERGEN,DR, SCHUETT,FRANK, WENZLAFF,AXEL
Format:	Patent
Sprache:	ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS BEER BIOCHEMISTRY CELLAR TOOLS CHEMISTRY ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PITCHING OR DEPITCHING MACHINES SEPARATION SPIRITS TRANSPORTING VINEGAR WINE
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Beschreibung
Zusammenfassung:	The process separates components of a liquid mixture in which one or more components to be extracted are highly diluted and these components can be precipitated by lowering the temperature. In particular, the process is used to extract hydrocarbons, for example ethanol, from mixtures which have been produced biologically, such as fermentation mixtures and fermentation mashes. The object of the invention is to design said process in such a way as to make it possible to produce, under economical and low-energy conditions, for example, ethanol even from mixtures which contain only a small percentage of this substance. It is characterised in that a) the liquid mixture is subjected to a first pervaporation, with the extraction of a permeate having enriched components, b) the permeate is divided into portions with low to higher concentrations of the component by means of condensation, and c) at least one more highly concentrated portion is dehydrated by means of a second pervaporation or distillation.