Charles R Booth

US Patent:

6726888, Apr 27, 2004

Filed:

Jan 25, 2002

Appl. No.:

10/054850

Inventors:

William Steven Lanier - Durham NC
Charles M. Booth - Raleigh NC
Vitali V. Lissianski - San Juan Capistrano CA
Vladimir M. Zamansky - Oceanside CA
Peter M. Maly - Lake Forest CA
William Randall Seeker - San Clemente CA

Assignee:

General Electric Company - Schenectady NY

International Classification:

C01G 1300

US Classification:

423 99, 423235

Abstract:

In a method to decrease emission of mercury, a factor is selected to control a combustion process to generate a flue gas comprising fly ash with enhanced unburned carbon; the combustion process is controlled according to a factor selected from reburning fuel, flue gas temperature, OFA injection, coal particle size, LNB flow, LNB design, combustion zone air, stoichiometric ratio of fuel, fuel/air mixing in a primary combustion zone and fuel/air mixing in a secondary combustion zone to produce the flue gas comprising fly ash with enhanced unburned carbon and to vaporize mercury; and the flue gas is allowed to cool to collect fly ash with enhanced unburned carbon with absorbed mercury. A system to decrease emission of mercury; comprises a combustion zone that is controlled to generate a flue gas comprising fly ash with enhanced unburned carbon and that produces vaporized mercury; and a post combustion zone to cool the flue gas to collect fly ash with enhanced unburned carbon with absorbed mercury.

US Patent:

6863005, Mar 8, 2005

Filed:

Dec 1, 2003

Appl. No.:

10/724251

Inventors:

William Steven Lanier - Durham NC, US
Charles M. Booth - Raleigh NC, US
Vitali V. Lissianski - San Juan Capistrano CA, US
Vladimir M. Zamansky - Oceanside CA, US
Peter M. Maly - Lake Forest CA, US
William Randall Seeker - San Clemente CA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F23J015/00

US Classification:

110345, 423210

Abstract:

In a method to decrease emission of mercury, a factor is selected to control a combustion process to generate a flue gas comprising fly ash with enhanced unburned carbon; the combustion process is controlled according to a factor selected from reburning fuel, flue gas temperature, OFA injection, coal particle size, LNB flow, LNB design, combustion zone air, stoichiometric ratio of fuel, fuel/air mixing in a primary combustion zone and fuel/air mixing in a secondary combustion zone to produce the flue gas comprising fly ash with enhanced unburned carbon and to vaporize mercury; and the flue gas is allowed to cool to collect fly ash with enhanced unburned carbon with absorbed mercury. A system to decrease emission of mercury; comprises a combustion zone that is controlled to generate a flue gas comprising fly ash with enhanced unburned carbon and that produces vaporized mercury; and a post combustion zone to cool the flue gas to collect fly ash with enhanced unburned carbon with absorbed mercury.

US Patent:

20050129600, Jun 16, 2005

Filed:

Jan 31, 2005

Appl. No.:

11/045389

Inventors:

William Lanier - Durham NC, US
Charles Booth - Raleigh NC, US
Vitali Lissianski - San Joan Capistrano CA, US
Vladimir Zamansky - Oceanside CA, US
Peter Maly - Lake Forest CA, US
William Seeker - San Clemente CA, US

International Classification:

B01D053/64

US Classification:

423239100, 423210000, 422171000, 422173000

Abstract:

In a method to decrease emission of mercury, a factor is selected to control a combustion process to generate a flue gas comprising fly ash with enhanced unburned carbon; the combustion process is controlled according to a factor selected from reburning fuel, flue gas temperature, OFA injection, coal particle size, LNB flow, LNB design, combustion zone air, stoichiometric ratio of fuel, fuel/air mixing in a primary combustion zone and fuel/air mixing in a secondary combustion zone to produce the flue gas comprising fly ash with enhanced unburned carbon and to vaporize mercury; and the flue gas is allowed to cool to collect fly ash with enhanced unburned carbon with absorbed mercury. A system to decrease emission of mercury; comprises a combustion zone that is controlled to generate a flue gas comprising fly ash with enhanced unburned carbon and that produces vaporized mercury; and a post combustion zone to cool the flue gas to collect fly ash with enhanced unburned carbon with absorbed mercury.

US Patent:

20060120934, Jun 8, 2006

Filed:

Dec 1, 2003

Appl. No.:

11/219882

Inventors:

William Lanier - Durham NC, US
Charles Booth - Raleigh NC, US
Vitall Lissianski - San Juan Capistreno CA, US
Viadimir Zamansky - Oceanside CA, US
Peter Maly - Lake Forest CA, US
William Seekar - San Clemente CA, US

International Classification:

B01D 53/64
B01D 53/34

US Classification:

423210000, 422168000

Abstract:

In a method to decrease emission of mercury, a factor is selected to control a combustion process to generate a flue gas comprising fly ash with enhanced unburned carbon; the combustion process is controlled according to a factor selected from reburning fuel, flue gas temperature, OFA injection, coal particle size, LNB flow, LNB design, combustion zone air, stoichiometric ratio of fuel, fuel/air mixing in a primary combustion zone and fuel/air mixing in a secondary combustion zone to produce the flue gas comprising fly ash with enhanced unburned carbon and to vaporize mercury; and the flue gas is allowed to cool to collect fly ash with enhanced unburned carbon with absorbed mercury. A system to decrease emission of mercury; comprises a combustion zone that is controlled to generate a flue gas comprising fly ash with enhanced unburned carbon and that produces vaporized mercury; and a post combustion zone to cool the flue gas to collect fly ash with enhanced unburned carbon with absorbed mercury.