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:
Aug. 04, 2009
Filed:
Sep. 26, 2008
Marcus Ledoux, Baton Rouge, LA (US);
Jim Butler, League City, TX (US);
Jim Merrill, Katy, TX (US);
Clint Persick, Denham Springs, LA (US);
Ashley Rabalais, Prairieville, LA (US);
Marcus Ledoux, Baton Rouge, LA (US);
Jim Butler, League City, TX (US);
Jim Merrill, Katy, TX (US);
Clint Persick, Denham Springs, LA (US);
Ashley Rabalais, Prairieville, LA (US);
Fina Technology, Inc., Houston, TX (US);
Abstract
Methods and systems for extending the life of a dehydrogenation catalyst are described herein. For example, one embodiment includes providing a reaction vessel loaded with a dehydrogenation catalyst with a feedstream via a conduit in operable communication with the reaction vessel. The feedstream may include an alkyl aromatic hydrocarbon and the dehydrogenation catalyst may be adapted to convert the alkyl aromatic hydrocarbon to a vinyl aromatic hydrocarbon. The feedstream may be contacted with an aqueous catalyst life extender, wherein the aqueous catalyst life extender enters the conduit at a linear velocity sufficient to prevent vaporization of the catalyst life extender in the conduit prior to contact with the feedstream.