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.

Date of Patent:
Feb. 04, 1997

Filed:

Nov. 22, 1994
Applicant:
Inventors:

Robert Martinelli, Doylestown, OH (US);

Dennis W Johnson, Barberton, OH (US);

Robert B Myers, Copley, OH (US);

Fred C Owens, II, North Canton, OH (US);

Peter V Smith, North Canton, OH (US);

Assignee:

The Babcock & Wilcox Company, New Orleans, LA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
422169 ; 55223 ; 552571 ; 55259 ; 96 53 ; 422168 ; 422170 ;
Abstract

A method and apparatus is described for removing acid gases, air toxics and/or other contaminants from a flue gas stream formed during the combustion of fossil fuel, and/or waste materials. The flue gas stream is conditioned immediately downstream of the combustion source with a finely atomized liquid which is preferably water. The water spray decreases the volume of the flue gas and cools the flue gas to condense air toxics or heavy metals on the baghouse fabric filters. Advantageously, this may utilize the alkalinity inherent in the fly ash component of the particulate to assist in the removal of acid gases and/or other contaminants via adsorption. Also, the conditioned gas reduces the flue gas volumetric flow rate and hence the size of the particulate collection device, and the cost of the fabric filter media.


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