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:
Apr. 05, 2005
Filed:
Mar. 08, 2004
Priya Rangarajan, Ponca City, OK (US);
Steven R. Mcdonald, Ponca City, OK (US);
Joe D. Allison, Ponca City, OK (US);
Keith H. Lawson, Ponca City, OK (US);
Oluwaseyi A. Odueyungbo, Ponca City, OK (US);
Doug S. Jack, Ponca City, OK (US);
Rafael L. Espinoza, Ponca City, OK (US);
Priya Rangarajan, Ponca City, OK (US);
Steven R. McDonald, Ponca City, OK (US);
Joe D. Allison, Ponca City, OK (US);
Keith H. Lawson, Ponca City, OK (US);
Oluwaseyi A. Odueyungbo, Ponca City, OK (US);
Doug S. Jack, Ponca City, OK (US);
Rafael L. Espinoza, Ponca City, OK (US);
ConocoPhillips Company, Houston, TX (US);
Abstract
The invention relates to methods for improving the octane number of a synthetic naphtha stream and optionally for producing olefins and/or solvents. In one embodiment, the method comprises aromatizing at least a portion of a synthetic naphtha stream to produce an aromatized hydrocarbon stream; and isomerizing at least a portion of the aromatized hydrocarbon stream to produce an isomerized aromatized hydrocarbon stream having a higher octane rating than the synthetic naphtha stream. Alternatively, the method comprises providing at least three synthetic naphtha cuts comprising a C-Cstream; a C-Cstream and a C-Cstream; aromatizing some of the C-Cstream to form an aromatized hydrocarbon stream with a higher octane number; steam cracking some of the C-Cstream and optionally the C-Cstream to form olefins; and selling some portions of C-Cstream as solvents. In preferred embodiments, the synthetic naphtha is derived from Fischer-Tropsch synthesis.