The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2005
Filed:
Dec. 01, 2003
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);
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);
General Electric Company, Schenectady, NY (US);
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.