Thomas P Dorchak DeceasedMorgantown, WV
Thomas Dorchak Phones & Addresses
Morgantown, WV
Flemington, NJ
Branchburg, NJ
2374 Lakeside Ests, Morgantown, WV 26508
Work
Position:
Protective Service Occupations
Mentions for Thomas P Dorchak
Publications & IP owners
Us Patents
Method Of Removing And Recovering Elemental Sulfur From Highly Reducing Gas Streams Containing Sulfur Gases
US Patent:
2004001, Jan 22, 2004
Filed:
Jul 15, 2002
Appl. No.:
10/194221
Inventors:
Santosh Gangwal - Cary NC, US
Apostolos Nikolopoulos - Durham NC, US
Thomas Dorchak - Morgantown WV, US
Mary Dorchak - Morgantown WV, US
Apostolos Nikolopoulos - Durham NC, US
Thomas Dorchak - Morgantown WV, US
Mary Dorchak - Morgantown WV, US
Assignee:
Research Triangle Institute - Research Triangle Park NC
International Classification:
C01B017/04
US Classification:
423/244090, 423/570000
Abstract:
A method is provided for removal of sulfur gases and recovery of elemental sulfur from sulfur gas containing supply streams, such as syngas or coal gas, by contacting the supply stream with a catalyst, that is either an activated carbon or an oxide based catalyst, and an oxidant, such as sulfur dioxide, in a reaction medium such as molten sulfur, to convert the sulfur gases in the supply stream to elemental sulfur, and recovering the elemental sulfur by separation from the reaction medium.
Method For Producing Elemental Sulfur From Sulfur-Containing Gases
US Patent:
5366717, Nov 22, 1994
Filed:
Mar 30, 1993
Appl. No.:
8/040077
Inventors:
Thomas P. Dorchak - Morgantown WV
Santosh K. Gangwal - Durham NC
Scott M. Harkins - Durham NC
Santosh K. Gangwal - Durham NC
Scott M. Harkins - Durham NC
Assignee:
Research Triangle Institute - Research Triangle Park NC
International Classification:
B01D 5336
C01B 1702
C01B 1702
US Classification:
423570
Abstract:
A method for producing elemental sulfur and reduced/oxidized sulfur compounds from sulfur containing gases. The method comprises mixing a primary gas stream of sulfur-containing gases with a secondary gas stream to produce a combined gas stream having a preselected stoichiometry and contacting the combined gas stream with a sorbent/catalyst. The sorbent/catalyst is selected form the group consisting of silica, alumina, and other Claus-type catalysts, sodium/alumina, zinc ferrite, zinc titanate, and other mixed metal oxides, and mixtures thereof.
Method For Producing Elemental Sulfur From Sulfur-Containing Gases
US Patent:
5798088, Aug 25, 1998
Filed:
Dec 12, 1995
Appl. No.:
8/571118
Inventors:
Thomas P. Dorchak - Morgantown WV
Santosh K. Gangwal - Durham NC
Scott M. Harkins - Pittsburgh PA
Santosh K. Gangwal - Durham NC
Scott M. Harkins - Pittsburgh PA
Assignee:
Research Triangle Institute - Research Triangle Park NC
International Classification:
B01D 5350
C01B 1704
C01B 1704
US Classification:
4235671
Abstract:
A method for producing elemental sulfur and reduced/oxidized sulfur compounds from sulfur containing gases. The method comprises mixing a primary gas stream of sulfur-containing gases with a secondary gas stream to produce a combined gas stream having a preselected stoichiometry and contacting the combined gas stream with a catalyst at a pressure of 7 to 100 atmospheres and a temperature of 540. degree. to 700. degree. C. The catalyst is selected from the group consisting of silica, titania, alumina, sodium/alumina, zinc titanate, alumina or titania promoted with transition metals nickel, cobalt, molybdenum, tungsten, alloys and mixtures thereof and mixture of such catalysts.
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