KR950025085A - Coal Gasification Combined Cycle - Google Patents

Coal Gasification Combined Cycle Download PDF

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Publication number
KR950025085A
KR950025085A KR1019940002966A KR19940002966A KR950025085A KR 950025085 A KR950025085 A KR 950025085A KR 1019940002966 A KR1019940002966 A KR 1019940002966A KR 19940002966 A KR19940002966 A KR 19940002966A KR 950025085 A KR950025085 A KR 950025085A
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KR
South Korea
Prior art keywords
gas
ammonia
coal
exhaust gas
gas turbine
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Application number
KR1019940002966A
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Korean (ko)
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KR970010862B1 (en
Inventor
이찬
이진욱
Original Assignee
김준성
고등기술연구원 연구조합
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Priority to KR1019940002966A priority Critical patent/KR970010862B1/en
Publication of KR950025085A publication Critical patent/KR950025085A/en
Application granted granted Critical
Publication of KR970010862B1 publication Critical patent/KR970010862B1/en

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2200/00—Details of gasification apparatus
    • C10J2200/09—Mechanical details of gasifiers not otherwise provided for, e.g. sealing means
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

Abstract

본 발명은 석탄가스로부터 암모니아를 분리하여 가스터빈에서 나온 배기가스와 반응시킴으로써 배기가스내의 질소산화물을 줄일 수 있도록 한 석탄가스화 복합발전시스템을 제공한다. 본 발명은 석탄가스를 생성하는 가스화기와, 생성된 석탄가스내의 암모니아를 분리하는 습식세정기와, 상기 석탄가스를 연소기를 통해 연소시켜 이 연소가스에 의해 동력을 발생시키는 가스터빈과, 상기 가스터빈에서 배출된 배기가스에 의해 증기를 발생시키는 폐열회수보일러와, 상기 가스터빈에서 나온 배기가스와 상기 습식세정기에서 나온 암모니아가 용해된 물을 열교환시켜 암모니아 가스를 발생시키는 암모니아가스 발생기와, 상기 암모니아가스를 상기 폐열회수 보일러의 내부로 공급하여 배기가스내의 질소산화물을 제거하는 암모니아 분배기를 구비한다. 따라서 배가가스내의 질소산화물을 대폭 줄일 수 있게 되고, 암모니아가 용해된 물을 처리하기 위한 별도의 수처리장치가 필요없게 됨과 동시에 공업용수의 소비량을 줄일 수 있게 된다.The present invention provides a coal gasification combined cycle power generation system capable of reducing nitrogen oxides in the exhaust gas by separating ammonia from the coal gas and reacting with the exhaust gas from the gas turbine. The present invention provides a gasifier for generating coal gas, a wet cleaner for separating ammonia in the generated coal gas, a gas turbine for burning the coal gas through a combustor to generate power by the combustion gas, and in the gas turbine. A waste heat recovery boiler that generates steam by the exhaust gas, an ammonia gas generator that generates ammonia gas by heat-exchanging the exhaust gas from the gas turbine and water in which ammonia from the wet cleaner is dissolved, and the ammonia gas. It is provided with an ammonia distributor for supplying the inside of the waste heat recovery boiler to remove nitrogen oxides in the exhaust gas. Therefore, it is possible to significantly reduce the nitrogen oxides in the exhaust gas, and to eliminate the need for a separate water treatment device for treating the water in which ammonia is dissolved, and at the same time, the consumption of industrial water can be reduced.

Description

석탄가스화 복합발전시스템Coal Gasification Combined Cycle

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 석탄가스화 복합발전시스템을 개략적으로 도시한 블럭도,1 is a block diagram schematically showing a conventional coal gasification combined cycle system,

제2도는 본 발명에 따른 석탄가스화 복합발전시스템을 개략적으로 도시한 블럭도,2 is a block diagram schematically showing a coal gasification combined cycle system according to the present invention,

제3도는 제2도에 도시된 폐열회수보일러의 내부 구조를 일부 발췌하여 도시한 개략도,3 is a schematic view showing a partial extract of the internal structure of the waste heat recovery boiler shown in FIG.

제4도는 질소산화물 제거율과 반응온도간의 관계를 나타낸 그래프.4 is a graph showing the relationship between nitrogen oxide removal rate and reaction temperature.

Claims (3)

석탄가스를 생성하는 가스화기와, 생성된 석탄가스와 물을 반응시켜 석탄가스내의 암모니아를 제거하는 습식세정기와, 상기 습식세정기에 의해 암모니아가 제거된 석탄가스를 연소기를 통해 연소시켜 이 연소가스에 의해 동력을 발생시키는 가스터빈과, 상기 가스터빈에서 나온 배기가스에 의해 중기를 발생시키는 폐열회수 보일러와, 상기 가스터빈에서 나온 배기가스와 상기 습식세정기에서 나온 암모니아가 용해된 물을 열교환시켜 암모니아가스를 발생시키는 암모니아가스 발생기와, 상기 암모니아가스를 상기 폐열회수 보일러의 내부로 공급하여 가스터빈의 배기가스와 반응시킴으로써 배기가스내의 질소산화물을 제거하는 암모니아가스 분배기를 포함하는 석탄가스화 복합발전시스템.A gasifier producing coal gas, a wet cleaner for reacting the produced coal gas with water to remove ammonia in the coal gas, and a coal gas from which the ammonia has been removed by the wet cleaner is combusted through the combustor. The heat generating gas turbine, the waste heat recovery boiler generating heavy air by the exhaust gas from the gas turbine, the exhaust gas from the gas turbine and the water in which the ammonia from the wet cleaner is dissolved are exchanged for ammonia gas. A coal gasification combined cycle system comprising an ammonia gas generator to generate and an ammonia gas distributor for supplying the ammonia gas into the waste heat recovery boiler to react with the exhaust gas of the gas turbine to remove nitrogen oxides in the exhaust gas. 제1항에 있어서, 상기 암모니아가스 분배기는 폐열회수 보일러의 고압증기 과열기와 고압증기 증발기 사이에 설치되는 것을 특징으로 하는 석탄가스화 복합발전시스템.The coal gasification combined cycle system according to claim 1, wherein the ammonia gas distributor is installed between the high pressure steam superheater and the high pressure steam evaporator of the waste heat recovery boiler. 제1항에 있어서, 상기 가스터빈의 배기가스와 암모니아가스의 반응온도가 300℃~400℃인 것을 특징으로 하는 석탄가스화 복합발전시스템.The coal gasification combined cycle power generation system according to claim 1, wherein a reaction temperature of the exhaust gas of the gas turbine and ammonia gas is 300 ° C to 400 ° C. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940002966A 1994-02-19 1994-02-19 Integrated coal gasification combined cycle KR970010862B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940002966A KR970010862B1 (en) 1994-02-19 1994-02-19 Integrated coal gasification combined cycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940002966A KR970010862B1 (en) 1994-02-19 1994-02-19 Integrated coal gasification combined cycle

Publications (2)

Publication Number Publication Date
KR950025085A true KR950025085A (en) 1995-09-15
KR970010862B1 KR970010862B1 (en) 1997-07-01

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101123263B1 (en) * 2011-08-31 2012-03-21 성호진 Facility generating electricity using low temperature exhaust gas

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