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:
Jul. 19, 2016
Filed:
Feb. 26, 2014
Fuel Tech, Inc., Warrenville, IL (US);
Christopher R. Smyrniotis, St. Charles, IL (US);
Kent W. Schulz, Geneva, IL (US);
Emelito P. Rivera, Inverness, IL (US);
Ian Saratovsky, Highland Park, IL (US);
Vasudeo S. Gavaskar, Naperville, IL (US);
FUEL TECH, INC., Warrenville, IL (US);
Abstract
HCl and sulfur oxides are reduced by treating combustion gases with an aqueous copper compound referred to as copper-based chloride remediator (CBCR). The process is preferably implemented by identifying locations within a combustor for feeding the CBCR, determining the physical form and injection parameters for the CBCR and injecting the CBCR under conditions effective to reduce HCl and/or sulfur oxides. Effective temperatures for introducing the CBCRs can be from about 250° to 900° F. for HCl and up to about 2200° F. for sulfur oxides. Preferred CBCRs include copper and an ammonia moiety. One composition is copper diammonium diacetate, empirical formula of CHCuNO. CBCR compositions are not sorbents and chemically convert HCl from a gaseous to a solid form.