Charles B Sedman

US Patent:

7341616, Mar 11, 2008

Filed:

Oct 13, 2005

Appl. No.:

11/249636

Inventors:

Robert W. Taylor - Overland Park KS, US
Charles B. Sedman - Hillsborough NC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B03C 3/155

US Classification:

95 70, 553411, 55378, 96 55

Abstract:

A particulate filtration system for removing particulates suspended in a fluid include, in an exemplary embodiment, a filter element and a pre-collector body component operably connected to the filter element. The pre-collector body component is capable of receiving an electrical charge to attract and remove particles suspended in the fluid.

US Patent:

7815714, Oct 19, 2010

Filed:

Dec 20, 2007

Appl. No.:

11/961434

Inventors:

Robert Taylor - Ponte Vedra Beach FL, US
Charles Sedman - Hillsborough NC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B03C 3/014

US Classification:

95 67, 55DIG 38, 95 73, 96 74

Abstract:

A particulate filtration system for removing particulates suspended in a fluid that includes: 1) a filter element; 2) a pre-collector body component operably connected to the filter element and capable of receiving an electrical charge to attract and remove particles suspended in the fluid; and 3) means for cooling the pre-collector body component. The means for cooling the pre-collector body component may include a convective cooling channel through which a coolant flows. The system may further include a discharge electrode spaced apart from the pre-collector body component. The discharge electrode may be capable of receiving an electrical charge causing a difference in the electronic potential between the pre-collector body component and the discharge electrode.

US Patent:

56017910, Feb 11, 1997

Filed:

Dec 6, 1994

Appl. No.:

8/350295

Inventors:

Norman Plaks - Raleigh NC
Charles B. Sedman - Hillsborough NC
Leslie E. Sparks - Durham NC

Assignee:

The United States of America as represented by the Administrator of the
U.S. Environmental Protection Agency - Washington DC

International Classification:

B03C 300
B03C 304

US Classification:

422169

Abstract:

A novel electrostatic precipitator includes an electrostatic collector section with discharge electrodes positioned between pairs of grounded collector electrodes, a gas entry port located upstream of said electrostatic collector section, and a transition section between the gas entry port and said electrostatic collector section into which an aqueous acid gas neutralizing agent is sprayed into a gas stream. An additional collector section may be interposed between the gas entry port and the point where the acid gas neutralizing agent is injected into the gas stream. The collector section may comprise alternating charging and short collection sections in which the grounded electrodes of adjoining charger and collector sections are connected. A liquid spray removes particulates collected on the grounded electrodes of the collector sections.

US Patent:

61529885, Nov 28, 2000

Filed:

Oct 21, 1998

Appl. No.:

9/176251

Inventors:

Norman Plaks - Raleigh NC
Charles B. Sedman - Hillsborough NC

Assignee:

The United States of America as represented by the Administrator of the
Environmental Protection Agency - Washington DC

International Classification:

B03C 3155

US Classification:

95 58

Abstract:

An electrostatic bag filter unit is formed of a plurality of sections arranged in series. One section is a bag filter section containing a plurality of parallel elongated filter fabric bag elements extending across and traverse to a gas flow path therethrough and a plurality of grounded, electrically-conductive support frames, each support frame being internal to and supporting one of the filter fabric bag elements. Optionally, the bag filter section may further include a plurality of non-discharging electrodes disposed parallel to and interspersed among the filter fabric bag elements. A filter precharger section is located immediately upstream of and contiguous with the bag filter section and is formed of a linear array of alternating corona discharge electrodes and grounded electrodes arranged perpendicular to the gas flow path.

US Patent:

52175111, Jun 8, 1993

Filed:

Jan 24, 1992

Appl. No.:

7/826302

Inventors:

Norman Plaks - Raleigh NC
Charles B. Sedman - Hillsborough NC

Assignee:

The United States of America as represented by the Administrator of the
Environmental Protection Agency - Washington DC

International Classification:

B03C 314

US Classification:

55124

Abstract:

An electrostatic precipitator includes a plurality of collector sections having parallel collection plates, defining gas flow lanes therebetween, and a bag filter section containing a plurality of parallel, elongated filter fabric bag elements. A plurality of corona discharge wires for charging solid particulates entrained in the gas flow entering the bag filter section are disposed parallel to and interspersed among the bag elements. Both the bag elements and the corona discharge wires within the bag filter section depend from a common plate member. Gas flow is from the outside of the bag elements to the inside and out through apertures in the supporting plate.

US Patent:

54014816, Mar 28, 1995

Filed:

Mar 15, 1993

Appl. No.:

8/032472

Inventors:

Gary T. Rochelle - Austin TX
Claus Jorgensen - Elliott City MD
John C. S. Chang - Cary NC
Theodore G. Brna - Cary NC
Charles B. Sedman - Hillsborough NC
Wojciech Jozewicz - Chapel Hill NC

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

C01B 3324

US Classification:

423331

Abstract:

The present disclosure relates to improved processes for treating acid gases to remove acid gas components therefrom. Processes in accordance with the present invention include preparing a calcium silicate hydrate sorbent in the form of a semi-dry, free-flowing powder, and treating the gas with the powdery sorbent, such as by injecting the sorbent into a stream of the gas. The powdery sorbents may be prepared by slurrying/drying or pressure hydration techniques. Examples disclosed herein demonstrate the utility of these processes in achieving improved acid gas-absorbing capabilities in both lab-scale and pilot plant studies. Additionally, disclosure is provided which illustrates preferred plant design configurations for employing the present processes using conventional dry sorbent injection equipment. Retrofit application to existing plants is also addressed.

US Patent:

51006430, Mar 31, 1992

Filed:

Mar 2, 1988

Appl. No.:

7/163090

Inventors:

Theodore G. Brna - Cary NC
Charles B. Sedman - Hillsborough NC
John C. S. Chang - Cary NC
Claus Jorgensen - Ellicott City MD
Gary T. Rochelle - Austin TX

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

C01B 700
C01B 1700
B01J 800

US Classification:

423240R

Abstract:

The present disclosure relates to improved processes for treating acid gases to remove acid gas components therefrom. Processes in accordance with the present invention include preparing a calcium silicate hydrate sorbent in the form of a semi-dry, free-flowing powder, and treating the gas with the powdery sorbent, such as by injecting the sorbent into a stream of the gas. The powdery sorbents may be prepared by slurrying/drying or pressure hydration techniques. Examples disclosed herein demonstrate the utility of these processes in achieving improved acid gas-absorbing capabilities in both lab-scale and pilot plant studies. Additionally, disclosure is provided which illustrates preferred plant design configurations for employing the present processes using conventional dry sorbent injection equipment. Retrofit application to existing plants is also addressed.

US Patent:

52700151, Dec 14, 1993

Filed:

Aug 6, 1991

Appl. No.:

7/741090

Inventors:

Gary T. Rochelle - Austin TX
Claus Jorgensen - Elliott City MD
John C. S. Chang - Cary NC
Theodore G. Brna - Cary NC
Charles B. Sedman - Hillsborough NC
Wojciech Jozewicz - Chapel Hill NC

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

B01D 5000

US Classification:

422168