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. 16, 1999

Filed:

Oct. 09, 1997
Applicant:
Inventors:

Francis R Alix, Greenland, NH (US);

S Edward Neister, New Durham, NH (US);

Christopher R McLarnon, Exeter, NH (US);

Assignee:

Zero Emissions Technology Inc., Portsmouth, NH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
423210 ; 423235 ; 42324301 ; 423393 ; 423522 ; 2041573 ; 204174 ; 204177 ;
Abstract

A process and apparatus for reducing particulate, nitrogen oxides ('NOx'), sulfur dioxide ('SO.sub.2 '), and mercury ('Hg') emissions from the combustion exhaust of fossil fuel fired plants while producing an end product that is commercially useful, comprising the steps of oxidizing Hg, NOx and SO.sub.2 using a barrier, pulse, corona, or electron beam electrical discharge apparatus to produce HgO and the acids HNO.sub.3 and H.sub.2 SO.sub.4, collecting the HgO, acids and particulates in a wet ESP, and separating the particulates from the collected acid mixture, then separating and concentrated the acids for industrial use.


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