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:
Dec. 16, 2008
Filed:
Mar. 10, 2004
Johan Pieter DE Wet, Vanderbijlpark, ZA;
Wilhelmina Jansen, Vanderbijlpark, ZA;
Paul Jacobson, Sasolburg, ZA;
Johan Pieter de Wet, Vanderbijlpark, ZA;
Wilhelmina Jansen, Vanderbijlpark, ZA;
Paul Jacobson, Sasolburg, ZA;
Sasol Technology (Proprietary) Limited, Rosebank, ZA;
Abstract
This invention relates to a commercially viable process for extracting oxygenates from a hydrocarbon stream, typically a fraction of the condensation product of a Fischer-Tropsch reaction, while preserving the olefin content of the condensation product. The oxygenate extraction process is a liquid-liquid extraction process that takes place in an extraction column using a polar organic solvent, such as methanol, and water as the solvent, wherein the polar organic solvent and water are added separately to the extraction column.