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:
May. 18, 2021
Filed:
Aug. 01, 2017
Applicant:
Fuel Tech, Inc., Warrenville, IL (US);
Inventors:
Chrstopher R. Smyrniotis, St. Charles, IL (US);
Ian Saratovsky, Highland Park, IL (US);
Edward G. Schaub, Wheaton, IL (US);
Scott Bohlen, Bucksport, ME (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 11/12 (2006.01); D21C 11/00 (2006.01);
U.S. Cl.
CPC ...
D21C 11/0092 (2013.01); D21C 11/0057 (2013.01); D21C 11/12 (2013.01);
Abstract
Disclosed is a process for reducing slag in a black liquor recovery boiler, the process comprising: injecting and burning black liquor in a boiler by contacting it with primary air and secondary air; introducing a slag-reducing chemical into the gases above the injection locations through interlaced, tangential or concentric secondary, tertiary, and/or quarternary air ports.