[특허]Method for reducing NOX in combustion flue gas using metal-containing additives

Method for reducing NOX in combustion flue gas using metal-containing additives 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/34 F23J-015/00 F23J-007/00
출원번호	US-0387631 (1999-08-31)
발명자 / 주소	Zamansky Vladimir M. Maly Peter M. Cole Jerald A. Lissianski Vitali V. Seeker William Randall
출원인 / 주소	GE Energy and Environmental Research Corporation
대리인 / 주소	Workman, Nydegger & Seeley
인용정보	피인용 횟수 : 66 인용 특허 : 10

초록 ▼

Various methods for decreasing the amount of nitrogen oxides released to the atmosphere as a component of combustion gas mixtures are provided. The methods specifically provide for the removal of nitric oxide and nitrogen dioxide (NO.sub.x) from gas mixtures emitted from stationary combustion systems. In particular, methods for improving efficiency of nitrogen oxide reduction from combustion systems include injecting metal-containing compounds into the main combustion zone and/or the reburning zone of a combustion system. The metal containing compounds react with active combustion species, and these reactions change radical concentrations and significantly improve NO.sub.x conversion to molecular nitrogen. The metal-containing additives can be injected with the main fuel, in the main combustion zone, with secondary or reburning fuel addition, or at several locations in the main combustion zone and reburning zone. Optionally, nitrogenous reducing agents and/or overfire air can be injected downstream to further increase NO.sub.x reduction.

대표청구항 ▼

[What is claimed and desired to be secured by United States Letters Patent is:] [1.](a) providing a combustion zone adapted to react a combustible fuel and an oxidizing agent;(b) adding a combustible fuel and an oxidizing agent to the combustion zone to produce a combustion flue gas including nitrogen oxides;(c) introducing a first amount of a metal-containing additive into the combustion zone;(d) allowing the first amount of the metal-containing additive to react within the combustion flue gas to decrease the concentration of nitrogen oxides therein;(e) adding a reburning fuel to the combustion flue gas downstream from the combustion zone to form a reburning zone;(f) introducing a second amount of a metal-containing additive into the reburning zone; and(g) allowing the second amount of the metal-containing additive to react within the combustion flue gas in the reburning zone to further decrease the concentration of nitrogen oxides therein.

이 특허에 인용된 특허 (10)

Seeker William R. (San Clemente CA) Chen Shih L. (Irvine CA) Kramlich John C. (Irvine CA), Advanced reburning for reduction of NOx emissions in combustion systems.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Method for reducing NOX in combustion flue gas using metal-containing additives 원문보기

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이 특허를 인용한 특허 (66)

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연합인증

Method for reducing NOX in combustion flue gas using metal-containing additives 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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