1
Alfred E Keller, Sriram Ramani, Joe D Allison, Steven E Lusk, Nathan A Hatcher, Larry D Swinney, Kerri J Kirkendall, Gilbert E Torres, Paul D Stewart, Terry D Pruitt: Compact sulfur recovery plant and process. ConocoPhillips Company, Conley Rose P C, June 5, 2007: US07226572 (10 worldwide citation)

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 ...


2
David A Franklin, Nathan A Hatcher: Method for removing hydrogen sulfide from molten sulfur. Black & Veatch Pritchard, F Lindsey Scott, August 10, 1999: US05935548 (9 worldwide citation)

A method and apparatus for removing hydrogen sulfide from a molten sulfur stream containing hydrogen sulfide and hydrogen polysulfides by mixing the molten sulfur stream with a degassed molten sulfur stream in an eductor to form a mixture, contacting the mixture with a finely dispersed gaseous oxida ...


3
Alfred E Keller, Sriram Ramani, Joe D Allison, Steven E Lusk, Nathan A Hatcher, Larry D Swinney, Rebecca S Shaver: Increased capacity sulfur recovery plant and process for recovering elemental sulfur. Conoco Phillips Company, March 10, 2009: US07501111 (7 worldwide citation)

Claus sulfur recovery plants that include one or more single-stage or multi-stage compact tubular Claus catalytic reactor-heat exchanger units are disclosed. In some instances, these new or improved Claus plants additionally include one or more compact heat exchanger containing cooling tubes that ar ...


4
Alfred E Keller, Sriram Ramani, Nathan A Hatcher, Joe D Allison, Steven E Lusk, Larry D Swinney, Kerri J Kirkendall, Gilbert E Torres, Paul D Stewart, Terry D Pruitt: Compact sulfur recovery plant and process. ConocoPhillips Company, ConocoPhillips Company, July 14, 2009: US07560088 (2 worldwide citation)

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 liqu ...


5
Alfred E Keller, Nathan A Hatcher, Sriram Ramani, Terry D Pruitt, Michael D Smith: Sulfur degassing process. ConocoPhillips Company, August 16, 2011: US07998451 (1 worldwide citation)

A process is disclosed for removing hydrogen sulfide from liquid sulfur including: passing a liquid sulfur feed comprising liquid sulfur and hydrogen sulfide to a vaporizer; vaporizing at least a portion of the liquid sulfur feed in the vaporizer to thereby form a first vapor stream comprising gaseo ...


6
Alfred E Keller, Nathan A Hatcher, Sriram Ramani, Larry D Swinney: Sulfur recovery plant. ConocoPhillips Company, February 9, 2010: US07658906

Novel sulfur recovery plants, and processes utilizing these plants are disclosed. These apparatuses eliminate the use of a condenser between the waste heat boiler and first Claus catalytic reactors, and also eliminate the use of reheaters in between Claus catalytic reactors.


7
Alfred E Keller, Nathan A Hatcher, Sriram Ramani, Terry D Pruitt, Michael D Smith: Sulfur degassing process. ConocoPhillips Company, December 13, 2011: US08075866

A process is disclosed for removing hydrogen sulfide from liquid sulfur including: passing a liquid sulfur feed comprising liquid sulfur and hydrogen sulfide to a vaporizer; vaporizing at least a portion of the liquid sulfur feed in the vaporizer to thereby form a first vapor stream comprising gaseo ...


8
Alfred E Keller, Sriram Ramani, Nathan A Hatcher, Joe D Allison, Steven E Lusk, Larry D Swinney, Kerri J Kirkendall, Gilbert E Torres, Paul D Stewart, Terry D Pruitt: Compact sulfur recovery plant and process. ConocoPhillips Company, ConocoPhillips Company I P Legal, December 27, 2007: US20070297970-A1

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 liqu ...


9
Alfred E Keller, Sriram Ramani, Joe D Allison, Steven E Lusk, Nathan A Hatcher, Larry D Swinney, Rebecca S Shaver: Increased Capacity Sulfur Recovery Plant and Process for Recovering Elemental Sulfur. Conocophillips Company, ConocoPhillips Company I P Legal, February 28, 2008: US20080050306-A1

Claus sulfur recovery plants that include one or more single-stage or multi-stage compact tubular Claus catalytic reactor-heat exchanger units are disclosed. In some instances, these new or improved Claus plants additionally include one or more compact heat exchanger containing cooling tubes that ar ...


10
Alfred E Keller, Nathan A Hatcher, Sriram Ramani, Larry D Swinney: Novel sulfur recovery plant. ConocoPhillips Company IP Services Group, September 3, 2009: US20090220402-A1

Novel sulfur recovery plants, and processes utilizing these plants are disclosed. These apparatuses eliminate the use of a condenser between the waste heat boiler and first Claus catalytic reactors, and also eliminate the use of reheaters in between Claus catalytic reactors.