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. 03, 2005
Filed:
Apr. 16, 2003
Sergio R. Mohedas, Ponca City, OK (US);
Rafael L. Espinoza, Ponca City, OK (US);
Doug S. Jack, Ponca City, OK (US);
Oluwasei A. Odueyungbo, Ponca City, OK (US);
James Dale Ortego, Jr., Ponca City, OK (US);
Sergio R. Mohedas, Ponca City, OK (US);
Rafael L. Espinoza, Ponca City, OK (US);
Doug S. Jack, Ponca City, OK (US);
Oluwasei A. Odueyungbo, Ponca City, OK (US);
James Dale Ortego, Jr., Ponca City, OK (US);
ConocoPhillips Company, Houston, TX (US);
Abstract
Methods for producing clean liquid/wax products from a slurry used in a Fischer-Tropsch reactor are disclosed. In general, one embodiment of the present invention comprises a solid/liquid filtration system having a filter medium comprising a substrate and a filter cake deposited on the substrate, wherein the filter cake is generated by deposition of solids from the slurry. The thickness of the filter cake can be maintained within a desired range by controlling the slurry velocity and/or the pressure differential across the filter medium. This invention relates to a method of operation of such filtration system which increases filtration cycle time and improved filtrate quality resulting in very low solid content in filtrate.