[특허]Method and system for a condensing boiler and flue gas cleaning by cooling and liquefaction

Method and system for a condensing boiler and flue gas cleaning by cooling and liquefaction 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01K-025/14
출원번호	US-0977138 (1992-11-16)
발명자 / 주소	Abdelmalek Fawzy T. (12807 Willowyck Dr. St. Louis MO 63146)
인용정보	피인용 횟수 : 59 인용 특허 : 0

초록 ▼

A method for cleaning a flue gas stream continuously emitting from a thermal power plant fossil fueled boiler, and containing hazardous volatile organic vapors, heavy metal vapors, nitrogen oxides, sulfur dioxide, and carbon dioxide by cooling, condensing and gas liquefaction processes employing a h

대표청구항 ▼

In combination with a fossil fueled power plant boiler system wherein the improvement allows cleanup of the flue gas stream by recovering thermal energy that otherwise would be lost to the atmosphere, and by employing a gas compressor-expander open heat cycle system, the improvement of which comprises: a thermal fossil fueled power plant boiler having a continuous combustion air stream and emitting a continuous flue gas stream containing particulate matter, hazardous volatile organic vapors, heavy metal vapors, acidic water vapors, nitric oxides, sulfur dioxide, carbon dioxide; conduits for conducting the said combustion air stream and the said flue gas stream; an electrostatic precipitator dust collection system to remove the said particulate matter; an electrostatic gas treater to neutralize the electromagnetic charges of the particulate matter released in the said flue gas stream flowing from the said electrostatic precipitator dust collection system; a condensing heat exchanger for recovering thermal energy from the flue gas stream to allow cooling and condensing water vapor contained therein while preheating combustion air stream; a gas seperator to seperate the flue gas stream flowing from the said condensing heat exchanger into a heavier flue gas fraction stream and a lighter flue gas fraction stream; a flue gas compressor-expander system consisting of a gas compressor, a gas expander, and a prime mover having a common drive shaft and drive controls to pressurize the said enriched carbon dioxide gas fraction and to expand the said pressurized gas stream into a reverse expanded gas stream; a heat exchanger to cool and condense part of the said acidic water vapors contained in the said pressurized enriched carbon dioxide gas fraction stream while heating an auxiliary cooling water stream; a first expanded reverse gas stream to a pressurized gas stream heat exchanger to further cool and condense the acidic water vapors contained in the pressurized flue gas stream while heating the expanded reverse gas stream flowing from a second reverse gas to gas heat exchanger; a first moisture separator to separate and remove the acidic water vapor condensate contained in the pressurized flue gas stream flowing from the said first reverse gas to gas heat exchanger; a second expanded reverse gas stream to a pressurized gas stream heat exchanger to further cool and condense most of the sulfur dioxide contained in the pressurized flue gas stream flowing from the first moisture separator while heating the expanded reverse gas stream flowing from a third reverse gas to has heat exchanger; a second moisture separator to separate and remove condensate of the liquefied sulfur dioxide gas contained in the said pressurized flue gas stream flowing from the said second gas to gas heat exchanger; a third expanded reverse gas stream to a pressurized gas stream heat exchanger to further cool and condense a part of the carbon dioxide contained in the pressurized flue gas stream flowing from the second moisture separator while further heating the expanded reverse gas stream flowing from the gas expander; a third moisture separator to separate and remove the condensate of the carbon dioxide gas contained in the pressurized flue gas stream flowing from the third reverse gas to gas heat exchanger; a liquid to liquid heat exchanger to allow normalizing the temperature of the said condensate products while chilling a cooling water stream; a water cooling tower flue gas diffusing system to allow further cleaning and releasing the lighter flue gas stream flowing from the said gas separator and the cleaned heavier flue gas stream flowing from the first reverse gas heat exchanger.

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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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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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Method and system for a condensing boiler and flue gas cleaning by cooling and liquefaction 원문보기

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Method and system for a condensing boiler and flue gas cleaning by cooling and liquefaction 원문보기

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