Process for the high recovery efficiency of sulfur from an...

Details Process for the high recovery efficiency of sulfur from an... Process for the high recovery efficiency of sulfur from an...

2008-04-01

2008-04-01

Vanoy, Timothy C. (Department: 1793)

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

C423S574100, C423S576800, C423SDIG017, C435S266000

Reexamination Certificate

active

11070117

ABSTRACT:
A combined process for the recovery of sulfur from an acid gas stream. The combined process includes both a Claus unit and a unit for treating the Claus tail gas with caustic to remove hydrogen sulfide therefrom and to biologically oxidize the hydrogen sulfide using certain types of sulfur bacteria to make elemental sulfur. The combined process provides for an exceptionally low concentration of hydrogen sulfide in the finally treated sweet gas.

REFERENCES:
patent: 3985861 (1976-10-01), Hudson, Jr.
patent: 4428921 (1984-01-01), Seike
patent: 4452772 (1984-06-01), Knoblauch et al.
patent: 5354545 (1994-10-01), Buisman
patent: 5468458 (1995-11-01), Watson
patent: 5965100 (1999-10-01), Khanmamedov
patent: 6056934 (2000-05-01), Carlsen et al.
patent: 6156205 (2000-12-01), Buisman et al.
patent: 6221652 (2001-04-01), Janssen et al.
patent: 6297189 (2001-10-01), Jin et al.
patent: 6432873 (2002-08-01), Khare et al.
patent: 6517801 (2003-02-01), Watson
patent: 6638057 (2003-10-01), Watson et al.
patent: 6656249 (2003-12-01), Buisman et al.
patent: 6696284 (2004-02-01), Haridas et al.
patent: 2001/0034056 (2001-10-01), Corey
patent: 2005/0214925 (2005-09-01), Chen et al.
patent: 84410 (1983-07-01), None
patent: 244659 (1987-11-01), None
patent: 98/57731 (1998-12-01), None
International Search Report for PCT/US2005/006690 of Jun. 22, 2005.
Written Opinion for PCT/US2005/006690 of Jun. 22, 2005.

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