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. 24, 2005
Filed:
Nov. 12, 2002
Rafael L. Espinoza, Ponca City, OK (US);
Ajoy P. Raje, Stillwater, OK (US);
Doug S. Jack, Ponca City, OK (US);
Rafael L. Espinoza, Ponca City, OK (US);
Ajoy P. Raje, Stillwater, OK (US);
Doug S. Jack, Ponca City, OK (US);
ConocoPhillips Company, Houston, TX (US);
Abstract
A process for reducing C-Colefin formation by recycling them to a Fischer-Tropsch hydrocarbon synthesis process and promoting recycled olefins chain growth comprises contacting a gas feed comprising a mixture of Hand CO with a catalyst in a reactor system at conditions effective to produce a hydrocarbon product stream including C-Colefins, separating a C-Colefins-rich stream from the hydrocarbon product stream to form a light olefin recycle stream and recycling the light olefin recycle stream to the reactor system at a point in the reactor system where the H:CO ratio is low relative to the H:CO ratio in the rest of the reactor system. Depending on whether the initial H:CO ratio is greater or less than the usage ratio of the selected catalyst, the recycled olefins can be returned to the system up- or downstream of the reactor system.