SIDNEY G NELSON
Engineers in Hudson, OH

7887618, Feb 15, 2011

Apr 15, 2009

12/424186

Sidney Nelson - Hudson OH, US

Albemarle Corporation - Baton Rouge LA

B03C 3/013

95 58, 95 76, 95134

Methods are provided for reducing emission of mercury from a gas stream by treating the gas with carbonaceous mercury sorbent particles to reduce the mercury content of the gas; collecting the carbonaceous mercury sorbent particles on collection plates of a hot-side ESP; periodically rapping the collection plates to release a substantial portion of the collected carbonaceous mercury sorbent particles into hoppers; and periodically emptying the hoppers, wherein such rapping and emptying are done at rates such that less than 70% of mercury adsorbed onto the mercury sorbent desorbs from the collected mercury sorbent into the gas stream.

8420033, Apr 16, 2013

Nov 23, 2007

12/305720

Yinzhi Zhang - Hudson OH, US
Qunhui Zhou - Hudson OH, US
Sidney G. Nelson - Hudson OH, US

Albemarle Corporation - Baton Rouge LA

B01D 47/00, B01D 53/46, B01D 53/56, B01D 53/86, B01J 8/00, B01J 20/00

423210, 502400, 502418

Mercury adsorbed from combustion gas by activated carbon can be sequestered in concrete containing air entraining admixtures. The activated carbon may be made by providing a carbon char made from anthracite or low-volatile bituminous coal that was devolatilized and carbonized in an oxygen-depleted environment and activating this char in the presence of steam to provide an activated carbon with an acid blue 80 index of less than about 30 milligrams per gram of carbon. The activated carbon may also be made by providing a carbon char that was devolatilized and carbonized in an oxygen-depleted environment and activating this char in the presence of oxygen to provide an activated carbon. The carbon may be injected into a combustion gas stream containing fly ash and mercury and may then be removed with fly ash from the gas stream. The resulting composition may be used as a partial substitute for cement in air-entrained concretes.

4980137, Dec 25, 1990

Apr 3, 1989

7/331850

Sidney G. Nelson - Hudson OH
Brian W. Nelson - Kent OH

Sanitech, Inc. - Twinsburg OH

B01J 800, C01B 2100, C01B 3118, C10K 120

423239

An improved process is described for reducing the levels of nitrogen oxides and carbon monoxide present in flue gases. The process consists of preparing a bed of expanded vermiculite, expanded perlite, or borosilicate glass wool and passing a flue gas containing nitrogen oxides and carbon monoxide through the bed, whereas the vermiculite, perlite, or glass wool making up the bed material serves as a catalyst for the reduction of the nitrogen oxides to gaseous nitrogen and oxygen and the reduction of carbon monoxide to carbon and oxygen, the carbon being deposited on the bed particles. After the deposition of carbon, the bed material is then exposed to an oxidizing gas stream, during which time the deposited carbon is converted to carbon dioxide and the bed material is conditioned to accept flue gas again.

5627133, May 6, 1997

May 31, 1996

8/658963

Sidney G. Nelson - Hudson OH

Sorbent Technologies Corporation - Twinsburg OH

A01N 2500

504116

A soil amendment for reclaiming mine spoils and for enriching agricultural, horticultural, and turf grass soils while reducing the release of heavy metals into the environment comprising a liming agent, expanded vermiculite or perlite particles, fly ash, and a reaction product generated by exposing a calcium compound in a duct-injection process to a combustion flue-gas stream containing sulfur dioxide.

4786484, Nov 22, 1988

Oct 7, 1987

7/105663

Sidney G. Nelson - Hudson OH

Sanitech, Inc. - Twinsburg OH

B01D 5334

423239

A process for absorbing noxious components such as SO. sub. x, NO. sub. x, and HX from a gas such as a flue gas at temperature below 250. degree. C. is improved by contacting the gas with a conditioned solid acceptor that contains divalent metal oxide, hydroxide or both coated onto exfoliated vermiculite and/or expanded perlite. Before use (to enhance its absorption of noxious components) conditioning can be done by heating the hydrated acceptor at temperature of at least about 400. degree. C. for a short time.

4721582, Jan 26, 1988

Feb 3, 1987

7/010449

Sidney G. Nelson - Hudson OH

Sanitech, Inc. - Twinsburg OH

C09K 300, B01J 2004

252189

Solid sorbents (acceptors) for noxious components, e. g. SO. sub. x, NO. sub. x and HX, from gases below about 250. degree. , specifically acceptors that contain hydrated divalent metal oxide coated onto an exfoliated or expanded mineral support, are improved by heating them before use at a temperature of 450. degree. -650. degree. for a conditioning period of at least a few minutes. So conditioned pulverulent MgO coated onto water-laden exfoliated vermiculite (alternatively expanded perlite) is preferred because of capacity and the ability of the magnesia-based acceptors to be regenerated at a moderately elevated temperature that precludes substantial deterioration of acceptor or equipment. To insure immediate activity the conditioned acceptor is moistened for use. Advantageously the gas and/or the acceptor is humidified during their contact.

4806320, Feb 21, 1989

Apr 21, 1988

7/184885

Sidney G. Nelson - Hudson OH

Sanitech, Inc. - Twinsburg OH

B01J 800, C01B 1700

423239

A process is described for reducing the levels of nitrogen oxides present in flue gases from stationary sources. The process consists of mixing ammonia or methane with the flue gas and then passing the mixtures through a bed of expanded vermiculite, the latter serving as a catalyst for reactions between the nitorgen oxides and ammonia or methane. The reactions result in the formation of nitrogen and water and/or carbon dioxide.

4829036, May 9, 1989

Apr 21, 1988

7/184191

Brian W. Nelson - Kent OH
Sidney G. Nelson - Hudson OH

Sanitech, Inc. - Twinsburg OH

B01J 2034, B01D 5302

502 50

A process is disclosed for regenerating spent MgO-vermiculite and MgO-perlite sorbents, where the sorbents have been employed beforehand to remove sulfur and nitrogen oxides from flue gases. The regeneration process consists of a series of heating and cooling steps performed in controlled atmospheres during which time sulfur oxides and elemental sulfur are recovered, nitrogen oxides are destroyed, and the sorbents are returned substantially to their original condition.

4711718, Dec 8, 1987

Jan 20, 1987

7/005215

Sidney G. Nelson - Hudson OH

Sanitech, Inc. - Twinsburg OH

B01D 2702

210282

A filter is disclosed for treating drinking waters contaminated with lead or, alternately, lead and copper. The filter is made an effective extractor of toxic lead or copper by incorporating a particulate chelating agent having substantial selectivity for lead or lead and copper and having little or no reactivity with all other ions.