TERTIARY AIR ADDITION TO SOLID WASTE-FIRED FURNACES FOR NOX CONTROL

World Intellectual Property Organization Patent

APP PUB NO WO-2008082522-A1
SERIAL NO

PCTUS2007025835

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Abstract

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Through the addition of tertiary air and a reduction of secondary air, NOx emissions from a waste-to-energy (WTE) boiler may be reduced. The tertiary air is added to the WTE at a distance from the secondary air, in a boiler region of relatively lower temperatures. A secondary NOx reduction system, such as a selective non-catalytic reduction (SNCR) system using ammonia or urea, may also be added to the boiler with tertiary air to achieve desirable high levels of NOx reductions. The SNCR additives are introduced to the WTE boiler proximate to the tertiary air.

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Patent Owner(s)

Patent OwnerAddress
COVANTA ENERGY CORPUSNEW JERSEY USA

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Inventor(s)

Inventor Name Address
GOFF STEPHEN P TENAFLY NJ 07670
WHITE MARK L WIXOM MI
BRADLEY CHRISTOPHER A CHANDLER ARIZONA 85226
BARKER ROBERT L FAIRFIELD NJ 07004
SEMANYSHYN ZENON FAIRFIELD NEW JERSEY 07004
DEDUCK STEPHEN G FAIRFIELD NEW JERSEY 07004
CLARK JOHN D OCEANSIDE CA

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