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. 13, 2004
Filed:
Jan. 29, 2002
Shuen-Cheng Hwang, Chester, NJ (US);
Neeraj Saxena, Murray Hill, NJ (US);
Robert J. Ferrell, Rutherford, NJ (US);
Naresh Suchak, North Plainfield, NJ (US);
Lev Davydov, North Plainfield, NJ (US);
James K. Tseng, Berkeley Heights, NJ (US);
Chester Gorski, Kendall Park, NJ (US);
The BOC Group, Inc., New Providence, NJ (US);
Abstract
The present invention relates to a process for removing nitrogen oxides, sulfur oxides, mercury and mercuric oxide from gas streams such as furnace or utility boiler flue gas streams, particularly those derived from coal-fired utility boilers, or from a gas stream from another pollutant abatement process. Ozone will react with the impurities in the gas stream to form mercuric oxide and higher oxides of nitrogen which can be removed by scrubber means. Additionally, and alternatively, the present invention provides for the use of ozone and ultraviolet radiation to remove nitrogen oxides, sulfur oxides and mercury from gas streams.