IP Library › Granted Patent US 8,114,359
Granted Patent B2
US 8,114,359 · App. 11/577,171 · Granted Feb 14, 2012

SNCR distribution grid

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Quick Facts
Patent No.
US 8,114,359
App. No.
11/577,171
Granted
Feb 14, 2012
Kind
B2
Abstract

An SNCR distribution grid for introducing a NOx reducing reactant into a flue gas flow. The grid is made of one or more elements which are formed by fluid-cooled tubes to which membrane pieces are attached, preferably by welding, to form conduits in between the tubes. The fluid-cooled tubes may be cooled by water and/or steam and the distribution grid is disposed in the flue gas flow. To admit the reactant into the flue gas, nozzles are provided in the membrane and the reactant is conveyed from a location external of the furnace or combustor enclosure, into the conduits so formed, and thence out into the Flue gas flow via the nozzles.

Claims (2)

1. An SNCR distribution grid for delivering a reactant for reducing NOx into a gas stream containing NOx, comprising:

at least one element for conveying the reactant from a source outside of the gas stream, the element having at least one nozzle for spraying the reactant from a conduit defined within the element into the gas stream, the conduit being formed by at least two fluid-cooled tubes and membranes located in-between the tubes, the at least one nozzle being located in at least one of the membranes, the at least one element being provided with a protective tile, the protective tile provided with a spacer to provide a gap between the protective tile and the at least one membrane for reducing heat absorption by the membrane, the spacer provided with a portion which extends around an outside diameter of the at least one nozzle and a portion which extends within an aperture in the protective tile to prevent excessive movement of the protective tile during operation.

Assignments (14)
SECURITY INTEREST Recorded Jul 18, 2025
From: BABCOCK & WILCOX ENTERPRISES, INC.; THE BABCOCK & WILCOX COMPANY; DIAMOND POWER INTERNATIONAL, LLC; BABCOCK & WILCOX SPIG, INC.; BABCOCK & WILCOX CANADA CORP.; BABCOCK & WILCOX FPS INC.
To: B. RILEY FINANCIAL, INC.
Reel/Frame 072053/0943 →
SECURITY INTEREST Recorded May 23, 2025
From: BABCOCK & WILCOX ENTERPRISES, INC.; THE BABCOCK & WILCOX COMPANY; DIAMOND POWER INTERNATIONAL, LLC; BABCOCK & WILCOX SPIG, INC.; BABCOCK & WILCOX CANADA CORP.; BABCOCK & WILCOX FPS INC.
To: GLAS TRUST COMPANY LLC
Reel/Frame 071371/0835 →
SECURITY INTEREST Recorded Mar 3, 2025
From: BABCOCK & WILCOX ENTERPRISES, INC.; THE BABCOCK & WILCOX COMPANY; DIAMOND POWER INTERNATIONAL, LLC; BABCOCK & WILCOX SPIG, INC.; BABCOCK & WILCOX CANADA CORP.; BABCOCK & WILCOX FPS INC.
To: PENSION BENEFIT GUARANTY CORPORATION
Reel/Frame 070380/0647 →
RELEASE OF SECURITY INTEREST Recorded Sep 13, 2024
From: MSD PCOF PARTNERS XLV, LLC
To: THE BABCOCK & WILCOX COMPANY; DIAMOND POWER INTERNATIONAL, LLC; AMERICON LLC
Reel/Frame 069017/0362 →
SECURITY INTEREST Recorded Jan 19, 2024
From: BABCOCK & WILCOX ENTERPRISES, INC.; THE BABCOCK & WILCOX COMPANY; DIAMOND POWER INTERNATIONAL, LLC; BABCOCK & WILCOX SPIG, INC.; BABCOCK & WILCOX CANADA CORP.; BABCOCK & WILCOX FPS INC.
To: AXOS BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 066354/0765 →
SECURITY INTEREST Recorded Jul 22, 2021
From: THE BABCOCK & WILCOX COMPANY (F/K/A BABCOCK & WILCOX POWER GENERATION GROUP, INC.); BABCOCK & WILCOX SPIG, INC.; BABCOCK & WILCOX TECHNOLOGY, LLC; DIAMOND POWER INTERNATIONAL, LLC (F/K/A DIAMOND POWER INTERNATIONAL, INC.)
To: MSD PCOF PARTNERS XLV, LLC, AS AGENT
Reel/Frame 056962/0486 →
RELEASE OF SECURITY INTEREST Recorded Jul 1, 2021
From: BANK OF AMERICA, N.A.
To: DIAMOND POWER INTERNATIONAL, LLC (F/K/A DIAMOND POWER INTERNATIONAL, INC.); MEGTEC TURBOSONIC TECHNOLOGIES, INC.; THE BABCOCK & WILCOX COMPANY (F/K/A BABCOCK & WILCOX POWER GENERATION GROUP, INC.); BABCOCK & WILCOX SPIG, INC.; BABCOCK & WILCOX TECHNOLOGY, LLC (F/K/A MCDERMOTT TECHNOLOGY, INC.); SOFCO-EFS HOLDINGS LLC; BABCOCK & WILCOX MEGTEC, LLC
Reel/Frame 057337/0823 →
RELEASE OF SECURITY INTEREST Recorded May 17, 2018
From: LIGHTSHIP CAPITAL LLC
To: BABCOCK & WILCOX ENTERPRISES, INC.; THE BABCOCK & WILCOX COMPANY; DIAMOND POWER INTERNATIONAL, LLC; BABCOCK & WILCOX MEGTEC, LLC; MEGTEC TURBOSONIC TECHNOLOGIES, INC.; BABCOCK & WILCOX UNIVERSAL, INC.; BABCOCK & WILCOX TECHNOLOGY, LLC
Reel/Frame 046182/0829 →
SECURITY INTEREST Recorded Aug 10, 2017
From: THE BABCOCK & WILCOX COMPANY; DIAMOND POWER INTERNATIONAL, LLC; BABCOCK & WILCOX MEGTEC, LLC; MEGTEC TURBOSONIC TECHNOLOGIES, INC.; BABCOCK & WILCOX UNIVERSAL, INC.; BABCOCK & WILCOX TECHNOLOGY, LLC
To: LIGHTSHIP CAPITAL LLC
Reel/Frame 043515/0001 →
CHANGE OF NAME Recorded Sep 24, 2015
From: BABCOCK & WILCOX POWER GENERATION GROUP, INC.
To: THE BABCOCK & WILCOX COMPANY
Reel/Frame 036675/0434 →
SECURITY INTEREST Recorded Jul 28, 2015
From: BABCOCK & WILCOX POWER GENERATION GROUP, INC. (TO BE RENAMED THE BABCOCK AND WILCOX COMPANY)
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 036201/0598 →
SECURITY INTEREST Recorded Jul 22, 2014
From: BABCOCK & WILCOX POWER GENERATION GROUP, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 033380/0744 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Sep 30, 2010
From: BABCOCK & WILCOX POWER GENERATION GROUP, INC. (F.K.A. THE BABCOCK & WILCOX COMPANY)
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 025066/0080 →
RELEASE OF SECURITY INTEREST Recorded Aug 3, 2010
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: THE BABCOCK & WILCOX COMPANY; AMERICON EQUIPMENT SERVICES, INC.; AMERICON, INC.; APPLIED SYNERGISTICS, INC.; B & W SERVICE COMPANY; BABCOCK & WILCOX CHINA HOLDINGS, INC.; BABCOCK & WILCOX CONSTRUCTION CO., INC.; BABCOCK & WILCOX DENMARK HOLDINGS, INC.; BABCOCK & WILCOX EBENSBURG POWER, INC.; BABCOCK & WILCOX EQUITY INVESTMENTS, INC.; BABCOCK & WILCOX INTERNATIONAL SALES AND SERVICE CORPORATION; BABCOCK & WILCOX INTERNATIONAL, INC.; DIAMOND OPERATING CO., INC.; DIAMOND POWER AUSTRALIA HOLDINGS, INC.; DIAMOND POWER CHINA HOLDINGS, INC.; DIAMOND POWER EQUITY INVESTMENTS, INC.; DIAMOND POWER INTERNATIONAL, INC.; PALM BEACH RESOURCE RECOVERY CORPORATION; POWER SYSTEMS OPERATIONS, INC.; REVLOC RECLAMATION SERVICE, INC.; NATIONAL ECOLOGY COMPANY; NORTH COUNTY RECYCLING, INC.
Reel/Frame 024776/0693 →