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:
Apr. 28, 2009
Filed:
Jul. 13, 2006
Kelly L. Barger, Kingston, TN (US);
Gregg Robert Doulé, Knoxville, TN (US);
Michael G. Varner, Knoxville, TN (US);
Kelly L. Barger, Kingston, TN (US);
Gregg Robert Doulé, Knoxville, TN (US);
Michael G. Varner, Knoxville, TN (US);
Alstom Technology Ltd, Baden, CH;
Abstract
One aspect of the invention relates to a method for removing contaminants from a flue gas stream (). The method includes: removing fly ash from a flue gas stream () utilizing a particle collector (); contacting the flue gas stream with an alkaline reagent in a wet scrubber (); discharging a purge liquid () from the wet scrubber (); combining at least a portion of the purge liquid () with at least a portion of the fly ash () to form moistened fly ash (); and injecting at least a portion of the moistened fly ash () into the flue gas stream () upstream of the particle collector (), whereby the moistened fly ash () removes at least a portion of contaminants present in the flue gas stream ().