Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Max-Planck-Gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Fraunhofer-Ges. Zur Förderung Der Angewandten Forschung E.v.

Gerd Unkelbach

Rainer Schweppe

Thomas Hirth

Heike Lorenz

Jochen Forstner

Klemens Flick

Andreas Seidel Morgenstern

Moritz Leschinsky

Peter Schulze

The invention relates to a process for the continuous production of one or more olefins from an aqueous solution of corresponding alcohol(s) including: Providing a solid-free aqueous solution of the alcohol(s); putting the solution through a reactor, which is filled with a fixed-bed catalyst such that the solution comes into contact with the catalyst when flowing through the reactor at a temperature of at least 300&#xb0; C. and a pressure of at least 220 bar in such a temperature/pressure combination that the alcohol(s) are reacted under supercritical conditions; and transferring a resulting two-stage mixture to a separator, in which the mixture is separated in a raw olefin gas phase and an aqueous liquid phase; wherein the catalyst is selected from among metal oxides having the properties of a Bronstedt acid, insoluble metallic or semi-metallic phosphates as well as porous materials selected from among pumice and carbon, the surface area of which is coated with inorganic acid groups.

Process for preparing ethylene and other olefins from aqueous solutions of the corresponding alcohols

Method for the manufacture of furan compounds by using a heterogeneous catalyst in aqueous solution.

Method for the manufacture of furan compounds for renewable primary products

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Leipzig, Germany

Gerd Unkelbach