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:
May. 15, 2007
Filed:
Nov. 19, 2003
Bruce W. Ramme, Okauchee, WI (US);
Terry L. Coughlin, Saukville, WI (US);
Bryna D. Goeckner, Whitefish Bay, WI (US);
Bryan C. Fisher, Kennesaw, GA (US);
John J. Noegel, Grafton, WI (US);
Bruce W. Ramme, Okauchee, WI (US);
Terry L. Coughlin, Saukville, WI (US);
Bryna D. Goeckner, Whitefish Bay, WI (US);
Bryan C. Fisher, Kennesaw, GA (US);
John J. Noegel, Grafton, WI (US);
Wisconsin Electric Power Company, Milwaukee, WI (US);
Abstract
A method for reducing the amount of mercury affixed to a sorbent and/or fly ash is disclosed. The method includes the steps of providing an amount of sorbent and/or fly ash wherein at least a portion of the amount of sorbent and/or fly ash has particulates having mercury compounds affixed to the particulates; and exposing the amount of sorbent and/or fly ash to heated flowing air until mercury compounds are liberated from at least some of the particulates. Preferably, the amount of sorbent and/or fly ash is maintained in the heated flowing air until the sorbent reaches a temperature of at least 700° F. (372° C.). When the sorbent is activated carbon, it is preferred that the amount of sorbent and/or fly ash is maintained in the heated flowing air until the activated carbon reaches a temperature in the range of 700° F. (372° C.) to 1000° F. (538° C.).