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. 21, 2017
Filed:
Mar. 16, 2010
James W. Birmingham, Wellsville, NY (US);
Kevin J. O'boyle, Alma, NY (US);
James W. Birmingham, Wellsville, NY (US);
Kevin J. O'Boyle, Alma, NY (US);
ARVOS Inc., Wellsville, NY (US);
Abstract
A thermally efficiency regenerative air preheaterextracts more thermal energy from the flue gas exiting a solid fuel fired furnaceby employing an alkaline injection system. This mitigates acid fouling by selectively injecting different sized alkaline particlesinto the air preheater. Small particles provide nucleation sites for condensation and neutralization of acid vapors. Large particles are injected to contact and selectively adhere to the heat exchange elementsand neutralize liquid acid that condenses there. When the deposit accumulation exceeds a threshold, the apparatus generates and utilizes a higher relative percentage of large particles. Similarly, a larger relative percentage of small particles are used in other cases. Mitigation of the fouling conditions permits the redesign of the air preheaterto achieve the transfer of more heat from the flue resulting in a lower flue gas outlet temperature without excessive fouling.