DR. WILLIAM ROBERT WILSON, PHARMD
Pharmacy at 5 Ave, Pittsburgh, PA

5213779, May 25, 1993

Aug 1, 1991

7/738893

D. Alan R. Kay - Burlington, CA
William G. Wilson - Pittsburgh PA
Vinod Jalan - Concord MA

Gas Desulfurization Corporation - Pittsburgh PA

B01J 800, C01B 700, C01B 1700, C01B 2100

423239

A process for optimizing the removal of nitrogen oxide (NO. sub. x) and sulfur oxide (SO. sub. X) from flue gases is provided in which the flue gases pass over a lanthanide-oxygen-sulfur catalyst. The catalyst has active sites provided on its surface which promote the dissociation of NO. sub. X and receive and entrap oxygen released during the dissociation of the NO. sub. X. While the flue gases pass over the catalyst, a reducing gas contacts the catalyst to reduce the oxygen on the active sites of the catalyst and permit the catalyst to continue to promote the dissociation of the NO. sub. x in the flue gas. If the flue gases contain SO. sub. X, they are then passed over a solid solution having a solvent of a first lanthanide oxide compound which crystallizes in the fluorite habit and a solute of at least one altervalent oxide of a second lanthanide. The SO. sub. X in the flue gases reacts with the solid solution to form a sulfated lanthanide oxide which is removed from the flue gases. The sulfated lanthanide oxide may then be dissociated by raising its temperature to regenerate the lanthanide oxide.

5051245, Sep 24, 1991

Jun 21, 1990

7/541394

William G. Wilson - Pittsburgh PA
D. Alan R. Kay - Burlington, CA

Gas Desulfurization Corp. - Pittsburgh PA

C01C 1124

423242

A process for the reduction of sulfur oxides from flue gases is provided in which ammonia is added to the flue gas to precipitate out (NH. sub. 4). sub. 2 SO. sub. 4. The (NH. sub. 4). sub. 2 SO. sub. 4 is collected and can be sold as a commercial product.

2002004, Apr 18, 2002

Sep 5, 1995

08/523405

WILLIAM G. WILSON - PITTSBURGH PA, US
LAWRENCE L. MURRELL - SOUTH PLAINFIEL NJ, US

B01D053/48

423/230000, 423/244020

A method for desulfurizing gases is provided in which microdomains or microcrystals, of cerium oxide are provided within an alumina substrate. The cerium oxide microdomains within the alumina react within the sulfur in the gases to reduce the sulfur content of the effluent gas. The use of microdomains provides a high surface area of cerium oxide, and a stable surface area of the cerium oxide, which react in a rapid fashion with the sulfur-containing molecules leading to effective desulfurization to levels produced by thermodynamic calculations of the effluent gas.

4604268, Aug 5, 1986

Apr 2, 1985

6/718989

Alan R. Kay - Burlington, CA
William G. Wilson - Pittsburgh PA

B01D 5336

423230

A method for desulfurizing gases in which the sulfur is mainly in the form of hydrogen sulfide by reacting with one of the forms of cerium oxide with the formation of a cerium-oxygen-sulfur compound, which method can be conducted at temperatures as high as the lowest melting point of either the cerium oxides or cerium-oxygen-sulfur compounds formed by the reactions. The method also includes a definition of the temperature necessary for the regeneration of the cerium-oxygen-sulfur compounds back to cerium oxide which is capable of again reacting with the hydrogen sulfide of the gases being desulfurized whereby the emission of sulfur from the combustion of sulfur containing hydrocarbons is reduced to a level below that attainable with any other method when operated at the same high temperatures.

4397683, Aug 9, 1983

Jul 31, 1980

6/174024

D. Alan R. Kay - Burlington, CA
William G. Wilson - Pittsburgh PA

Union Oil Company of California - Los Angeles CA

C22C 3308

75 58

A method for desulfurizing fluid materials, comprising reacting sulfur to be removed with a rare earth compound, thereby forming rare earth sulfides, oxysulfides or mixtures thereof. The reaction is conducted under conditions of low oxygen potential. Rare earth sulfides and oxysulfides can be reacted with oxygen to restore a capacity for desulfurization.

4224058, Sep 23, 1980

Apr 19, 1979

6/031531

William G. Wilson - Pittsburgh PA
D. Alan R. Kay - Hamilton, CA

Molycorp, Inc. - Brea CA

C21C 702

75 58

A method for desulphurizing fluid materials such as molten iron, steel, stack gases, synthetic natural gases, boiler gases, coal gasification and liquification products and the like is provided in which one of the group rare earth oxides, rare earth fluocarbonates, rare earth oxyfluorides and mixtures thereof, including bastnasite concentrates are reacted at low oxygen potential, with the sulphur to be removed to form one of the group consisting of rare earth sulphides, rare earth oxysulphides and mixtures thereof. The low oxygen potential can be achieved by carrying out the reaction in the presence of vacuum, reducing gases, carbon, etc.

4885145, Dec 5, 1989

Sep 23, 1987

7/100291

D. Alan R. Kay - Burlington, CA
William G. Wilson - Pittsburgh PA

C01B 1716, C01B 3120, C01B 1700, C01F 1700

423230

A method for desulfurization of fuel gases resulting from the incomplete combustion of sulfur containing hydrocarbons whereby the gases are treated with lanthanide oxides containing large numbers of oxygen-ion vacancies providing ionic porosity which enhances the ability of the lanthanide oxides to react more rapidly and completely with the sulfur in the fuel gases whereby the sulfur in such gases is reduced to low levels suitable for fuels for firing into boilers of power plants generating electricity with steam turbine driven generators, gas turbines, fuel cells and precursors for liquid fuels such as methanol and the like.

4999174, Mar 12, 1991

Jun 22, 1990

7/542103

William G. Wilson - Pittsburgh PA
D. Alan R. Kay - Burlington, CA

Gas Desulfurization Corporation - Pittsburgh PA

B01D 5334

423241

A process for the removal of chlorine from reducing gases is provided wherein the reducing gases are contacted with cerium oxide. The chlorided cerium oxide is regenerated in an oxidizing atmosphere to provide cerium oxide. This cerium oxide regenerated is again capable of reacting with chlorine in reducing gases.