[특허]Method and apparatus for removing pollutants from flue gas

Method and apparatus for removing pollutants from flue gas 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F23J-011/00
출원번호	US-0293297 (1994-08-22)
발명자 / 주소	Meratla Zoher M. (2275 Westhill Drive West Vancouver British Columbia CAX V7S 2Z2)
인용정보	피인용 횟수 : 73 인용 특허 : 0

초록 ▼

A method for removing gaseous pollutants from a polluted flue gas stream of an oil or coal-fired combustion furnace. A source of liquified combustible gas and a combustible gas-fired furnace are provided. The polluted flue gas stream is passed through a dust removal apparatus and removes flue dust from the flue gas stream so as to provide a de-dusted flue gas stream. Heat is recovered from the flue gas to generate power therefrom. The de-dusted flue gas is compressed to a pressure of at least 10 psi gauge using the generated power to at least in part compress the de-dusted flue gas. The compressed flue gas and the combustible gas are passed through at least one multi-sided heat exchanger, where the compressed flue gas is first passed through one side thereof and the liquified combustible gas in an at least partially vaporized state is passed through another side thereof. The compressed flue gas is cooled sufficiently by the combustible gas that water and at least one gaseous pollutant of NO2, SO2 and CO2 are condensed and separated from the compressed flue gas to provide reduced pollutant flue gas. Fully vaporized combustible gas is passed to the combustible gas-fired furnace and combusted to a further flue gas and the further flue gas is passed into the polluted flue gas stream.

대표청구항 ▼

A method for removing gaseous pollutants from a polluted flue gas stream of an oil or coal-fired combustion furnace, comprising: (A) providing a source of liquified combustible gas; (B) providing a combustible gas-fired furnace; (C) passing the polluted flue gas stream through a dust removal means and removing flue dust from the flue gas stream so as to provide a de-dusted flue gas stream; (D) recovering heat from the flue gas to generate power therefrom; (E) compressing the de-dusted flue gas to a pressure of at least 10 psi gauge using the generated power to at least in part compress the de-dusted flue gas; (F) passing the compressed flue gas and the combustible gas through at least one multi-sided heat exchanger, wherein the compressed flue gas is first passed through one side thereof and the liquified combustible gas in an at least partially vaporized state is passed through another side thereof, and wherein the compressed flue gas is cooled sufficiently by the combustible gas that water and at least one gaseous pollutant selected from the group consisting of NO2, SO2 and CO2 are condensed and separated from the compressed flue gas to provide reduced pollutant flue gas; and (G) passing fully vaporized combustible gas to the combustible gas-fired furnace and combusting the gas to a further flue gas and passing the further flue gas into the polluted flue gas stream.

이 특허를 인용한 특허 (73)

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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 and apparatus for removing pollutants from flue gas 원문보기

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Method and apparatus for removing pollutants from flue gas 원문보기

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이 특허를 인용한 특허 (73)

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