Alfred E Keller, 655580 S Helena St, Denver, CO 80015

6403051, Jun 11, 2002

Jul 25, 2000

09/624715

Alfred E. Keller - Ponca City OK

Conoco Inc. - Houston TX

C01B 1704

4235731, 4232451, 4234182, 4234371, 4234372, 4235762, 4235768, 423651, 423655

A method, apparatus and system for treating a stream containing H S are disclosed. A preferred method comprises mixing the stream containing H S with a light hydrocarbon stream and an oxygen containing stream to form a feed stream; contacting the feed stream with a catalyst while simultaneously raising the temperature of the stream sufficiently to allow partial oxidation of the H S and partial oxidation of the light hydrocarbon to produce a product stream containing elemental sulfur, H O, CO and hydrogen, and cooling the product stream sufficiently to condense at least a portion of the elemental sulfur and produce a tail gas containing CO, H , H O and any residual elemental sulfur, and any incidental SO , COS, and CS from the hydrocarbon stream or produced in the process. The tail gate is contacted with a hydrogenation catalyst so that CO is then reacted with water to produce CO and hydrogen and any elemental sulfur, SO , COS, and CS in the tail gas is preferably converted into H S. The resulting H and H S-containing tail gas stream is then contacted with an alkanolamine absorber to remove the H S, producing a hydrogen stream which may be compressed and further purified for use in a hydrogen consuming process.

6579510, Jun 17, 2003

Dec 20, 2000

09/742999

Alfred E. Keller - Ponca City OK, 74602-1267
Joe D. Allison - Ponca City OK, 74602-1267
Sriram Ramani - Ponca City OK, 74602-1267

C01B 1704

4235731, 4232451, 4234182, 4235762, 4235768, 4236481, 423650, 423651, 252373

A method, system and catalysts for improving the yield of syngas from the catalytic partial oxidation of methane or other light hydrocarbons is disclosed. The increase in yield and selectivity for CO and H products results at least in part from the substitution of H S partial oxidation to elemental sulfur and water for the combustion of light hydrocarbon to CO and water.

6773691, Aug 10, 2004

Jul 16, 2002

10/196028

Sriram Ramani - Ponca City OK
Joe D. Allison - Ponca City OK
Alfred E. Keller - Ponca City OK

ConocoPhillips Company - Houston TX

C01B 326

423651, 4234182, 252373, 481981, 481987

A method for generating syngas having a H :CO ratio of less than 2:1 including selecting a predetermined desired syngas H :CO molar ratio, selecting a hydrocarbon with a natural H :CO molar ratio less than the desired ratio, selecting a hydrocarbon with a natural H :CO molar ratio greater than the desired ratio, mixing the two hydrocarbons such that the natural H :CO molar ratio of the mixture is the desired ratio, and catalytically partially oxidizing the mixture to produce syngas with the desired ratio.

6800269, Oct 5, 2004

Dec 18, 2001

10/024167

Alfred E. Keller - Ponca City OK
Sriram Ramani - Ponca City OK
Joe D. Allison - Ponca City OK
Terry D. Pruitt - Ponca City OK

Conocophillips Company - Houston TX

C01B 1704

4235762, 4235768

An apparatus and process for recovering elemental sulfur from a H S-containing waste gas stream are disclosed, along with a method of making a preferred catalyst for catalyzing the process. The apparatus preferably comprises a short contact time catalytic partial oxidation reactor, a cooling zone, and a sulfur condenser. According to a preferred embodiment of the process, a mixture of H S and O contacts the catalyst very briefly (i. e, less than about 200 milliseconds). Some preferred catalyst devices comprise a reduced metal such as Pt, Rh, or PtâRh, and a lanthanide metal oxide, or a pre-carbided form of the metal. The preferred apparatus and process are capable of operating at superatmospheric pressure and improve the efficiency of converting H S to sulfur, which will reduce the cost and complexity of construction and operation of a sulfur recovery plant used for waste gas cleanup.

6881394, Apr 19, 2005

Jun 11, 2002

10/166801

Alfred E. Keller - Ponca City OK, US

ConocoPhillips Company - Houston TX

C01B003/26
B01J008/02

423652, 48197 R, 481987, 422188, 422189, 422190, 422211

Preferred embodiments of the present invention generate a synthesis gas with a molar ratio of hydrogen to carbon monoxide of approximately 2:1 required for Fischer-Tropsch synthesis. Additional hydrogen produced in the steam reforming of methane beyond the requirements for the Fischer-Tropsch reaction is separated from the product gases of the reformer by the use of a hydrogen permeable membrane. Air is passed over the outside of the tube. As the hydrogen contacts the air, it is combusted with oxygen in the air to form water and release the heat necessary to drive the steam reforming reaction.

6946111, Sep 20, 2005

Dec 18, 2001

10/024679

Alfred E. Keller - Ponca City OK, US
Joe D. Allison - Ponca City OK, US
Sriram Ramani - Ponca City OK, US
Terry D. Pruitt - Ponca City OK, US

ConocoPhilips Company - Bartlesville OK

C01B017/04

4235762, 4235768

A process for removing sulfur from a HS-containing gas stream is disclosed. A preferred embodiment of the process comprises incorporating a short contact time catalytic partial oxidation reactor, a cooling zone, and a condenser into a conventional refinery or gas plant process, such as a natural gas desulfurizer, a hydrotreater, coker or fluid catalytic cracker, in which sulfur removal is needed in order to produce a more desirable product. An HS-containing gas stream is fed into a short contact time reactor where the HS is partially oxidized over a suitable catalyst in the presence of Oto elemental sulfur and water.

7041621, May 9, 2006

Jan 17, 2003

10/346427

Sriram Ramani - Ponca City OK, US
Alfred E. Keller - Ponca City OK, US
Joe D. Allison - Ponca City OK, US
Zhen Chen - Ponca City OK, US

ConocoPhillips Company - Houston TX

B01J 27/02

502216, 423651

A process and catalyst are disclosed for reducing coking in hydrocarbon processing reactions. The preferred embodiments employ a sulfur-containing material such as hydrogen sulfide to reduce catalyst susceptibility to deactivation from carbon deposits formed during processing.

7108842, Sep 19, 2006

Jan 15, 2004

10/758465

Sriram Ramani - Ponca City OK, US
Alfred E. Keller - Ponca City OK, US

ConocoPhillips Company - Houston TX

C01B 17/04

4235731, 4235768

A multistage oxygen-added catalytic partial oxidation process and apparatus for converting HS in an acid gas stream to elemental sulfur and water are disclosed. Each staged addition of oxygen or air at the top of the catalyst bed and at points along the catalyst bed maintain oxygen-limited HS catalytic partial oxidation conditions whereby incidental SOproduction is minimized.