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:
Mar. 31, 2015
Filed:
Apr. 30, 2013
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);
Mingming Fang, Naperville, IL (US);
Ian Saratovsky, Highland Park, IL (US);
Fuel Tech, Inc., Warrenville, IL (US);
Abstract
Dry processes, apparatus, compositions and systems are provided for reducing emissions of mercury and optionally sulfur oxides and/or HCl. In an embodiment the copper-based mercury remediation composition comprises a copper ammonium complex having an empirical formula of CHCuNOor any of the other materials described, which include compositions defined by the formula Cu(NH)(lower carboxylate), wherein the lower carboxylate is selected from the group consisting of formate, acetate and propionate, x is an integer from 0 to 4, y is an integer from 0 to 2, and x+y is equal to or greater than 1. Sulfur oxides and/or HCl can be additionally reduced by introduction of dolomite hydrate sorbent, and additional mercury remediation chemicals as manganese oxides can be employed. The treated gas stream is treated with a particulate removal device.