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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.:

US 9067837 B1

PDFFull Text
Date of Patent:
Jun. 30, 2015

Filed:

Mar. 14, 2014

Cleaning stack gas

Applicant:

Three D Stack, Llc, Powell, OH (US);

Inventor:

James Gary Davidson, Buchanan, TN (US);

Assignee:

Three D Stack, LLC, Powell, OH (US);

Attorneys:

Hahn, Loeser & Parks, LLP

Arland T. Stein

Primary Examiner:

Timothy Vanoy

Int. Cl.
CPC ...
C05D 3/00 (2006.01); C05D 9/00 (2006.01); B01D 53/50 (2006.01); B01D 53/56 (2006.01); B01D 53/62 (2006.01); B01D 53/81 (2006.01); B01D 53/82 (2006.01); C05C 5/00 (2006.01); B01D 53/86 (2006.01); B01D 53/88 (2006.01); F23J 15/02 (2006.01);
U.S. Cl.
CPC ...
C05C 5/00 (2013.01); B01D 53/869 (2013.01); B01D 53/8609 (2013.01); B01D 53/8671 (2013.01); B01D 53/8665 (2013.01); B01D 53/864 (2013.01); B01D 2255/50 (2013.01); B01D 53/8637 (2013.01); B01D 53/8693 (2013.01); B01D 53/885 (2013.01); B01D 2257/502 (2013.01); B01D 2257/504 (2013.01); B01D 2257/602 (2013.01); B01D 2258/0283 (2013.01); F23J 15/02 (2013.01); F23J 2219/10 (2013.01); C05D 9/00 (2013.01); Y02C 20/10 (2013.01);
Abstract

A method and apparatus for cleaning and recycling stack gas from coal-fired power plants, from natural or propane burning heating plants, or from cement kilns by using renewable catalysts of zeolite to separate pollutants into recyclable and reusable materials. The method reduces from the stack gas carbon monoxide (CO), carbon dioxide (CO), nitrogen oxide (NOx), sulfur oxide (SOx) as well as halogens such as chloride and fluorides and trace metals particularly, mercury, lead, and zinc. Bauxite compounds can also be separately collected if desired. The method and apparatus also result in production of fertilizer products by purging with gaseous or liquid nitrogen the zeolite beds through which the stack gas flows. The oxygen split in the beds may be recycled to the burners in the plant.

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