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:
Jun. 05, 1990
Filed:
Jul. 03, 1989
Applicant:
Inventors:
Stanley J Miller, Grand Forks, ND (US);
Dennis L Laudal, Grand Forks, ND (US);
Assignee:
The University of North Dakota School of Engineering & Mines Foundation, Grand Forks, ND (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
55 96 ; 55 97 ;
Abstract
A method of improving control of atmospheric emission of particulate matter from the emission stack of coal combustion facilities which employ baghouse particle controllers is disclosed. The method involves injecting upstream of the baghouse a small but effective amount of ammonia gas and sulfur trioxide. When this is done, the pressure drop across the baghouse is less and the amount of particulate matter in the smoke stack emissions is reduced by significant amounts.