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:
May. 27, 2025
Filed:
Jan. 21, 2022
Applicant:
Evonik Oxeno Gmbh & Co. KG, Marl, DE;
Inventors:
Philip Lutze, Dinslaken, DE;
Stephan Peitz, Oer-Erkenschwick, DE;
Armin Matthias Rix, Marl, DE;
Tanita Valèrie Six, Dortmund, DE;
Moritz Schröder, Muenster, DE;
Niklas Paul, Marl, DE;
Assignee:
Evonik Oxeno GmbH & Co. KG, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/11 (2006.01); C07C 7/04 (2006.01);
U.S. Cl.
CPC ...
C07C 7/11 (2013.01); C07C 7/04 (2013.01);
Abstract
A process for removing butenes from C4-hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent. The process also involves heat integration, which allows utilization of the heat of the solvent for heating and/or at least partly evaporating various streams.