Ralph D Bailey

US Patent:

6503470, Jan 7, 2003

Filed:

Dec 17, 1999

Appl. No.:

09/464806

Inventors:

Paul S. Nolan - North Canton OH
William Downs - Alliance OH
Ralph T. Bailey - Uniontown OH
Stanley J. Vecci - Alliance OH

Assignee:

The Babcock Wilcox Company - New Orleans LA
McDermott Technology, Inc. - New Orleans LA

International Classification:

B01D 5364

US Classification:

423210

Abstract:

A method and apparatus for reducing and removing mercury in industrial gases, such as a flue gas, produced by the combustion of fossil fuels, such as coal, adds sulfide ions to the flue gas as it passes through a scrubber. Ideally, the source of these sulfide ions may include at least one of: sulfidic waste water, kraft caustic liquor, kraft carbonate liquor, potassium sulfide, sodium sulfide, and thioacetamide. The sulfide ion source is introduced into the scrubbing liquor as an aqueous sulfide species. The scrubber may be either a wet or dry scrubber for flue gas desulfurization systems.

US Patent:

6855859, Feb 15, 2005

Filed:

Dec 5, 2000

Appl. No.:

09/730100

Inventors:

Paul S. Nolan - North Canton OH, US
Ralph T. Bailey - Uniontown OH, US
William Downs - Alliance OH, US

Assignee:

The Babcock & Wilcox Company - New Orleans LA
McDermott Technology Inc. - New Orleans LA

International Classification:

B01D053/64

US Classification:

588236, 588231, 423107, 423210, 4235661

Abstract:

Chlorine and sulfide species are separately introduced to a flue gas passing through a scrubber in order to remove the elemental and oxidized mercury from the gas through the precipitation of mercuric sulfide at near 100% efficiency.

US Patent:

7037474, May 2, 2006

Filed:

Dec 20, 2002

Appl. No.:

10/324833

Inventors:

Paul S. Nolan - North Canton OH, US
William Downs - Washington Township, Stark County OH, US
Ralph T. Bailey - Uniontown OH, US
Stanley J. Vecci - Washington Township, Stark County OH, US

Assignee:

The Babcock & Wilcox Company - New Orleans LA
McDermott Technology, Inc. - New Orleans LA

International Classification:

B01D 53/64

US Classification:

423210

Abstract:

A method and apparatus for reducing and removing mercury in industrial gases, such as a flue gas, produced by the combustion of fossil fuels, such as coal, adds sulfide ions to the flue gas as it passes through a scrubber. Ideally, the source of these sulfide ions may include at least one of: sulfidic waste water, kraft caustic liquor, kraft carbonate liquor, potassium sulfide, sodium sulfide, and thioacetamide. The sulfide ion source is introduced into the scrubbing liquor as an aqueous sulfide species. The scrubber may be either a wet or dry scrubber for flue gas desulfurization systems.

US Patent:

7484955, Feb 3, 2009

Filed:

Oct 4, 2006

Appl. No.:

11/538578

Inventors:

Thomas J. Flynn - North Canton OH, US
Ralph T. Bailey - Uniontown OH, US
Timothy A. Fuller - North Canton OH, US
Charles E. A. Finney - Knoxville TN, US
C. Stuart Daw - Knoxville TN, US

Assignee:

Electric Power Research Institute, Inc. - Charlotte NC

International Classification:

F23M 3/00

US Classification:

431 9, 431 8, 431 10, 431 75, 431116, 431281, 110348, 110213, 110203, 700274, 700299, 700300, 126 195, 137 15 E, 137 15 R

Abstract:

Methods for cyclone boiler flame diagnostics and control, including methods for monitoring the operating state of a cyclone furnace using linear and nonlinear signal analysis techniques, including temporal irreversibility and symbol sequence. Adjustments may be made in the air flow distribution to optimize performance. Signals for the main flame and lighter scanners are relatively independent, thereby allowing for independent control of the primary air flow to the burner and secondary air flow to the barrel.

US Patent:

7776293, Aug 17, 2010

Filed:

Jul 18, 2008

Appl. No.:

12/175540

Inventors:

William Downs - Alliance OH, US
Seyed B. Ghorishi - Uniontown OH, US
Ralph T. Bailey - Uniontown OH, US
Kevin J. Rogers - Wadsworth OH, US

Assignee:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH

International Classification:

B01D 53/34
B01D 53/56
B01D 53/74
B01D 53/83

US Classification:

423210, 4232155, 4232391, 422139, 422144, 422168, 422169, 422177, 422181

Abstract:

An apparatus for low-temperature NO-reduction is disclosed, which is useful in boiler installations used at electric-generating plants. The apparatus employs one or a plurality of moving-bed reactors wherein a moving bed of common base-metal catalyst is used for selective catalytic reduction of NOpresent in flue gas. The moving bed permits continuous introduction of fresh or regenerated catalyst, thus obviating the conventional problems of sulfur-poisoning and consequent reduction in catalytic activity with such catalysts. Due to the lower activation energies of such catalysts, an SCR utilizing the moving-bed reactors disclosed herein can be located downstream of the air heater, further improving electric-generating efficiency. Methods for low-temperature NOreduction are also disclosed.

US Patent:

20010043889, Nov 22, 2001

Filed:

Jun 28, 2001

Appl. No.:

09/894558

Inventors:

William Downs - Alliance OH, US
Ralph Bailey - Uniontown OH, US

International Classification:

B01D053/64
B01D053/52

US Classification:

422/168000, 423/210000, 423/220000

Abstract:

A method and apparatus for reducing mercury in industrial gases such as the flue gas produced by the combustion of fossil fuels such as coal adds hydrogen sulfide to the flue gas in or just before a scrubber of the industrial process which contains the wet scrubber. The method and apparatus of the present invention is applicable to installations employing either wet or dry scrubber flue gas desulfurization systems.

US Patent:

20050169824, Aug 4, 2005

Filed:

Feb 10, 2005

Appl. No.:

11/055526

Inventors:

William Downs - Alliance OH, US
Ralph Bailey - Uniontown OH, US

International Classification:

B01D053/64

US Classification:

423210000

Abstract:

A method and apparatus for reducing mercury in industrial gases such as the flue gas produced by the combustion of fossil fuels such as coal adds hydrogen sulfide to the flue gas in or just before a scrubber of the industrial process which contains the wet scrubber. The method and apparatus of the present invention is applicable to installations employing either wet or dry scrubber flue gas desulfurization systems. The present invention uses kraft green liquor as a source for hydrogen sulfide and/or the injection of mineral acids into the green liquor to release vaporous hydrogen sulfide in order to form mercury sulfide solids.

US Patent:

20090214993, Aug 27, 2009

Filed:

Feb 25, 2008

Appl. No.:

12/036639

Inventors:

Timothy A. Fuller - North Canton OH, US
Thomas J. Flynn - North Canton OH, US
Paul Li - Canton OH, US
Ralph T. Bailey - Uniontown OH, US

International Classification:

G05B 21/00
G05B 99/00

US Classification:

431 13, 700274

Abstract:

A system for analyzing the quality of combustion in the vicinity of the over fire zone of a combustion system includes at least one lens assembly mounted to a wall of the combustion system in the vicinity of the over fire zone. One or more photo-detectors are used to measure the intensity of light emitted in the over fire zone. A data acquisition system is connected to the photo-detector assembly via a communication link and includes an analog-to-digital converter and data buffering device for converting the light signals to digital signals. A computer analyzes the digital signals with linear and nonlinear signal analysis techniques.