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:
Dec. 28, 2010
Filed:
Dec. 15, 2005
Rajender S. Varma, Cincinnati, OH (US);
Yuhong Ju, Cincinnati, OH (US);
Subhas Sikdar, Blue Ash, OH (US);
Joo Youp Lee, Cincinnati, OH (US);
Timothy C. Keener, Cincinnati, OH (US);
Rajender S. Varma, Cincinnati, OH (US);
Yuhong Ju, Cincinnati, OH (US);
Subhas Sikdar, Blue Ash, OH (US);
Joo Youp Lee, Cincinnati, OH (US);
Timothy C. Keener, Cincinnati, OH (US);
Abstract
Oxidative sorbents are provided for adsorbing elemental or oxidized mercury from mercury-containing fluids such as flue gas from a coal-burning power utility or the like at a temperature range of about 50 to 350° C. The method of preparing and using the oxidative sorbents is also provided. The oxidative sorbent compositions include one or more silicates capable of cation exchange with a plurality of active metal cations and their counter anions. The silicates may include those selected from clays such as montmorillonite, laumonite, bentonite, Mica, vermiculite and kaolinite, and from silica gels, natural and synthetic molecular sieves, zeolites, and ashes from stoker- and pulverized coal-fired boilers. The one or more oxidative metal halides and/or sulfates may be selected from the group consisting of CuCl, CuBr, CuCl, CuBr, CuSO, FeCl, FeCl, FeSO, Fe(SO), ZnCl, ZnBr, NiCl, and NiSO. The oxidative sorbents may also include activated carbon.