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. 19, 2020
Filed:
May. 13, 2019
The Babcock & Wilcox Company, Barberton, OH (US);
James F Desellem, Salineville, OH (US);
Mandar R Gadgil, North Sioux City, SD (US);
Laura M McDermitt, Wadsworth, OH (US);
Margaret Yeager, Clinton, OH (US);
Thomas J Flynn, N. Canton, OH (US);
The Babcock & Wilcox Company, Akron, OH (US);
Abstract
The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.) and, in particular to a new and useful method and apparatus directed to one or more of: (i) reducing the levels of NOfrom one or more types of combustors, furnaces or boilers; (ii) reducing the levels of NOfrom one or more types of biomass combustors, furnaces or boilers; or (iii) reducing the levels of NOfrom one or more types of fluidized bed biomass combustors, furnaces or boilers. In one embodiment, the method and apparatus of the present invention permit the use of a less complex and/or expensive system to accomplish selective non-catalytic reduction (SNCR) and enable one to achieve DeNO(NOreduction) under low load or unit turndown operation for biomass combustion in a bubbling fluidized bed (BFB) boiler.