Method for obtaining a gaseous phase from a liquid medium and device for carrying out the same

US7722740B2 · kind B2 · utility

Assignees

• UHDE GMBH · DE
• Degussa AG · DE

Inventors

• Elias Klemm · Stuttgart, DE
• Johannes Albrecht · Mellrichstadt, DE
• Armin LANGE DE OLIVEIRA · Heidelberg, DE
• Georg Markowz · Alzenau, DE
• Stefan Gross · Lörrach, DE
• Ruediger Schuette · Alzenau, DE
• Johannes Ehrlich · Wiesenbronn, DE
• Steffen Schirrmeister · Mülheim an der Ruhr, DE
• Olaf Von Morstein · Essen, DE

Key dates

• Filing date: Oct 14, 2003
• Grant date: May 25, 2010
• Expiry date: Mar 7, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28F2260/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A modular construction micro-reactor with parallel microchannels on fluid guide plates for chemical reactions, but not for evaporation purposes is known. A modular construction falling film evaporator is disclosed, comprising a stack of alternate gap-like evaporation chambers and sheet-like evaporator modules with an assembly of parallel microchannels, whereby the evaporation chambers are open above and/or below across the whole width of the module and the stack is arranged in a container. The falling film evaporator is used in a method for obtaining a gaseous phase from a liquid medium on a technical scale and is suitable for the concentration of thermolabile solutions and rapidly adjustable production of a gas stream.