The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2017
Filed:
Jan. 24, 2013
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v., Munich, DE;
Abstract
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° 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.