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Class Information
Number: 423/576.8
Name: Chemistry of inorganic compounds > Sulfur or compound thereof > Elemental sulfur > Reacting a sulfide > Hydrogen sulfide > By reacting gaseous feed with gas containing free oxygen
Description: Subject matter in which a hydrogen sulfide-containing feed gas is directly contacted and mixed with a gas containing oxygen in uncombined form, elemental sulfur being thereby formed, including a process wherein such gases simultaneously contact a solid catalyst.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8486365 Process of conversion of hydrogen sulfide into elemental sulfur on solid oxide catalysts Jul. 16, 2013
8449860 Method and system for recovering sulfur in the thermal stage of a Claus reactor May. 28, 2013
8440160 Integrated sulfur recovery methods in power plants and low BTU gas fields May. 14, 2013
7951353 Flow control method and apparatus for a continuous multiple zone mass transfer May. 31, 2011
7901655 Process for producing a gas stream depleted of hydrogen sulphide Mar. 8, 2011
7824638 Process for catalytic tail gas incineration Nov. 2, 2010
7727507 Process for producing a gas stream depleted of hydrogen sulphide Jun. 1, 2010
7658906 Sulfur recovery plant Feb. 9, 2010
7655205 Process for the removal of SO.sub.2, HCN and H.sub.2S and Optionally COS, CS.sub.2 and NH.sub.3 from a gas stream Feb. 2, 2010
7655213 Direct oxidation of sulfur with carbon dioxide recycle Feb. 2, 2010
7611685 Method for hydrogen sulphide and/or mercaptans decomposition Nov. 3, 2009
7597871 Steam modified Claus process Oct. 6, 2009
7578985 Method for direct oxidation of hydrogen sulfide to elemental sulfur at low temperatures Aug. 25, 2009
7560088 Compact sulfur recovery plant and process Jul. 14, 2009
7544344 Process for recovering sulphur from a gas stream containing hydrogen sulphide Jun. 9, 2009
7531135 Process and system for controlling a process gas stream May. 12, 2009
7374742 Direct sulfur recovery system May. 20, 2008
7357908 Apparatus and catalytic partial oxidation process for recovering sulfur from an H.sub.2S-containing gas stream Apr. 15, 2008
7357905 Process for eliminating sulfur-containing compounds by direct oxidation Apr. 15, 2008
7354564 Partial oxidation of hydrogen sulphide Apr. 8, 2008
7351392 Process for the high recovery efficiency of sulfur from an acid gas stream Apr. 1, 2008
7335253 Process for preparing a sulphur cement product Feb. 26, 2008
7332145 Process and installation for the treatment of DSO Feb. 19, 2008
7326397 Catalytic partial oxidation process for recovering sulfur from an H.sub.2S-containing gas stream Feb. 5, 2008
7311891 Process for the recovery of sulfur from Claus tail gas streams Dec. 25, 2007
7291320 Process for the selective oxidation of hydrogen sulfhide Nov. 6, 2007
7282193 Method for energy recovery from hydrogen sulfide Oct. 16, 2007
7267809 Burner and method for the chemical reaction of two gas streams Sep. 11, 2007
7250149 Sulfur gas treatment process Jul. 31, 2007
7241430 Activated carbon for odor control and method for making same Jul. 10, 2007
7226572 Compact sulfur recovery plant and process Jun. 5, 2007
7172746 Temperature moderated claus process Feb. 6, 2007
7138101 Two-stage catalytic process for recovering sulfur from an H.sub.2S-containing gas stream Nov. 21, 2006
7122170 Catalysts for SPOC.TM. enhanced synthesis gas production Oct. 17, 2006
7108842 Process for the catalytic partial oxidation of H.sub.2S using staged addition of oxygen Sep. 19, 2006
7081233 Method and apparatus for degassing liquid sulfur Jul. 25, 2006
7067101 Water wall boiler for air and oxygen fired Claus sulfur recovery units Jun. 27, 2006
7060233 Process for the simultaneous removal of sulfur and mercury Jun. 13, 2006
6946111 Short contact time catalytic partial oxidation process for recovering sulfur from an H2S containing gas stream Sep. 20, 2005
6919059 Process and apparatus for recovering sulphur from a gas stream containing sulphide Jul. 19, 2005
6902713 Method for partially oxidizing a gas stream comprising hydrogen sulphide and ammonia Jun. 7, 2005
6893620 Process and apparatus for recovering sulphur from a gas stream containing hydrogen sulphide May. 17, 2005
6858192 Activated carbon for odor control and method for making same Feb. 22, 2005
6800269 Short contact time catalytic sulfur recovery system for removing H2S from a waste gas stream Oct. 5, 2004
6800261 Process for the removal of sulphur compounds from gases Oct. 5, 2004
6780392 Method and device for converting hydrogen sulfide into elemental sulfur Aug. 24, 2004
6776974 Process for the production of sulfur Aug. 17, 2004
6669921 Process for regenerating a catalytic redox solution, to include measuring the oxygen dissolved in the regeneration effluent and its application to desulfurization Dec. 30, 2003
6652826 Process for elimination of low concentrations of hydrogen sulfide in gas mixtures by catalytic oxidation Nov. 25, 2003
6652827 Process for the recovery of sulphur from a hydrogen sulphide, containing gas Nov. 25, 2003

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