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:
Jun. 05, 2007
Filed:
Mar. 03, 2006
Alfred E. Keller, Ponca City, OK (US);
Sriram Ramani, Katy, TX (US);
Joe D. Allison, Ponca City, OK (US);
Steven E. Lusk, Ponca City, OK (US);
Nathan A. Hatcher, Ponca City, OK (US);
Larry D. Swinney, Stillwater, OK (US);
Kerri J. Kirkendall, Ponca City, OK (US);
Gilbert E. Torres, Ponca City, OK (US);
Paul D. Stewart, Ponca City, OK (US);
Terry D. Pruitt, Ponca City, OK (US);
Alfred E. Keller, Ponca City, OK (US);
Sriram Ramani, Katy, TX (US);
Joe D. Allison, Ponca City, OK (US);
Steven E. Lusk, Ponca City, OK (US);
Nathan A. Hatcher, Ponca City, OK (US);
Larry D. Swinney, Stillwater, OK (US);
Kerri J. Kirkendall, Ponca City, OK (US);
Gilbert E. Torres, Ponca City, OK (US);
Paul D. Stewart, Ponca City, OK (US);
Terry D. Pruitt, Ponca City, OK (US);
ConocoPhillips Company, Houston, TX (US);
Abstract
A compact sulfur recovery system is disclosed which comprises a primary structure including a catalytic partial oxidation reaction zone, a first temperature-control zone, a first Claus catalytic reaction zone, a second temperature-control zone, a first liquid sulfur outlet, and a first effluent gas outlet. In some embodiments, a secondary structure follows the primary structure and comprises a second Claus catalytic reaction zone, a third temperature-control zone, a second liquid sulfur outlet, and a second effluent gas outlet. One or more components of the system employ heat transfer enhancement material in the temperature-control zones, and one or more components deter accumulation of liquid sulfur in the Claus catalytic reaction zones. A process for recovering elemental sulfur from hydrogen sulfide-containing gas streams comprises regulating the temperature of certain components to favor the partial oxidation reaction, and the Claus reaction, as appropriate, and deters pooling of liquid sulfur on the Claus catalyst(s).