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. 12, 2003
Filed:
Feb. 08, 2002
David R. Johnson, Petaluma, CA (US);
Christopher A. Simmons, El Cerrito, CA (US);
Donald H. Mohr, Orinda, CA (US);
Stephen J. Miller, San Francisco, CA (US);
Stephen K. Lee, Oakland, CA (US);
William L. Schinski, San Rafael, CA (US);
Michael S. Driver, San Francisco, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A process for increasing the yield of C plus hydrocarbon products from a Fischer-Tropsch plant which comprises the steps of (a) separating a Fischer-Tropsch product into a wax fraction and a condensate fraction; (b) dewaxing the wax fraction to produce a high boiling intermediate; (c) hydrofinishing the high boiling intermediate; (d) dehydrating the alcohols in the condensate fraction to convert them into olefins; (e) oligomerizing the olefins to form higher molecular weight hydrocarbons; (f) hydrofinishing the oligomerization mixture; and (g) and recovering a C plus hydrocarbon product from the hydrofinishing zone.