Compact sulfur recovery plant and process

US7560088B2 · kind B2 · utility

Assignee

• ConocoPhillips Company · US

Inventors

• Alfred E. Keller · Zürich, CH
• Sriram Ramani · Ponca City, US
• Nathan A. Hatcher · Kyle, US
• Joe D. Allison · Ponca City, US
• Steven E. Lusk · Ponca City, US
• Larry D. Swinney · Stillwater, US
• Kerri J. Kirkendall · Ponca City, US
• Gilbert E. Torres · Ponca City, US
• Paul D. Stewart · Ponca City, US
• Terry D. Pruitt · Ponca City, US

Key dates

• Filing date: Jun 4, 2007
• Grant date: Jul 14, 2009
• Expiry date: Nov 30, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S423/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A compact sulfur recovery system is disclosed which includes an upflow orientation for the gases through 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. The upward flow of the gases puts the hottest gases in contact with the tubes and tube sheet in the waste heat boiler where there is greater confidence in having liquid water in most continuous therewith.