KR101236782B1 - A smoke reduction apparatus of a exhaust gas - Google Patents

A smoke reduction apparatus of a exhaust gas Download PDF

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KR101236782B1
KR101236782B1 KR1020110137181A KR20110137181A KR101236782B1 KR 101236782 B1 KR101236782 B1 KR 101236782B1 KR 1020110137181 A KR1020110137181 A KR 1020110137181A KR 20110137181 A KR20110137181 A KR 20110137181A KR 101236782 B1 KR101236782 B1 KR 101236782B1
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reaction tube
exhaust gas
pipe
reaction
adsorbent
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KR1020110137181A
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Korean (ko)
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노기우
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에스코 주식회사
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Priority to PCT/KR2012/010881 priority patent/WO2013094938A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8631—Processes characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
    • B01D53/949—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start for storing sulfur oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/085—Sulfur or sulfur oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/904—Multiple catalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/10—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for stationary applications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

PURPOSE: A denitrification apparatus of exhaust gas is provided to prevent sulfur coating and to maintain the performance of a selective catalytic reduction module. CONSTITUTION: A denitrification apparatus comprises: an exhaust pipe(10), a reaction tube(40), a reaction device(15), a heating machine(30), a control device(35), and an auxiliary damper(47). The reaction device comprises an ammonium injector(17), a mixer(18), a first absorber(19), a first Nox remover(21), a second absorber(23), and a second Nox remover(25).

Description

매연탈질장치{A smoke reduction apparatus of a exhaust gas}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

본 발명은 매연탈질장치에 대한 것으로서, 더욱 상세하게는 황피독을 제거하여 저온 배출가스의 녹스를 저감시킬 수 있는 선택환원촉매(SCR, Selective Catalytic Reduction) 시스템을 이용한 매연탈질장치에 대한 것이다.The present invention relates to a soot denitrification apparatus, and more particularly, to a soot denitrification apparatus using a selective reduction catalyst (SCR) system capable of removing sulfur poisoning and reducing rust of low-temperature exhaust gas.

선박 또는 육상 플랜트의 배기가스로서 가장 많이 나오는 대기 오염물질이 녹스(NOx)이다. 녹스란 질소와 산소의 화합물로 연소과정에서 공기 중의 질소가 고온에서 산화 되어서 발생하며 NO, NO2, NO3, N2O, N2O3, N2O4, N2O5 7종류가 있다.NOx is the most common air pollutant in ships or onshore plants. Knox is a compound of nitrogen and oxygen, which is caused by the oxidation of nitrogen in the air at high temperatures during combustion, and there are seven types of NO, NO 2 , NO 3 , N 2 O, N 2 O 3 , N 2 O 4 and N 2 O 5. have.

녹스를 정화하기 위하여 일반적으로 SCR 장치가 많이 사용된다. 그러나 SCR 장치의 성능 및 수명은 촉매의 피독(Posion) 물질인 황에 의해 훼손된다. 즉 배기가스 중에 함유된 녹스는 SCR 모듈에서 제거되지만 황이 SCR모듈에 흡착될 경우 SCR 모듈의 성능 및 수명이 훼손된다. 그래서 일반적으로 황피독을 억제하기 위해서는 높은 배출가스의 온도 유지가 필요하지만 높은 온도의 배출가스를 유지하기 어려운 설비에 대해서는 황피독의 제거가 어렵다.SCR devices are commonly used to purify rusty. However, the performance and lifetime of the SCR device is compromised by sulfur, the posion material of the catalyst. That is, the rust contained in the exhaust gas is removed from the SCR module, but if the sulfur is adsorbed on the SCR module, the performance and the life of the SCR module are impaired. Therefore, it is generally difficult to remove sulfur poisoning in installations where it is necessary to maintain a high exhaust gas temperature to suppress sulfur poisoning, but it is difficult to maintain a high temperature exhaust gas.

따라서 종래에는 낮은 온도의 배출가스를 배출하는 선박 또는 육상플랜트의 경우 SCR장치를 이용하여 녹스를 제거하기가 어렵다는 문제점이 있었다.Therefore, conventionally, in the case of a ship or a land plant that discharges low temperature exhaust gas, there is a problem that it is difficult to remove the rust using the SCR device.

본 발명은 상기의 문제점을 해결하기 위한 것이다. 본 발명은 선박이나 육상 플랜트와 같이 저온의 배출가스를 배출하는 장치에서 황피독을 예방하고 녹스를 저감할 수 있는 매연탈질장치를 제공하는 것을 목적으로 한다.The present invention is intended to solve the above problems. An object of the present invention is to provide a soot denitrification apparatus that can prevent sulfur poisoning and reduce rust in a device for discharging low-temperature exhaust gas such as a ship or a land plant.

본 발명에 따른 매연탈질장치는 배기관과, 반응수단을 포함한다. 상기 반응수단은 암모니아 분사기와, 혼합기와, 제1흡착제와, 제1녹스제거제를 구비하며 상기 배기관에서 배출되는 배출가스에서 녹스를 저감시킨 후 상기 배기관으로 배출가스를 보내도록 설치된다. 상기 암모니아 분사기는 배기관에서 배출되는 배출가스에 혼합시키기 위한 암모니아를 분사시킨다. 상기 혼합기는 상기 암모니아 분사기에서 분사된 암모니아와 상기 배기관에서 배출되는 배출가스를 혼합시킨다. 상기 제1흡착제는 상기 혼합기를 통과한 배출가스에 함유된 황을 흡착시킨다. 상기 제1녹스제거제는 상기 제1흡착제를 통과한 배출가스에서 녹스를 제거한다.The soot denitrification apparatus according to the present invention includes an exhaust pipe and a reaction means. The reaction means includes an ammonia injector, a mixer, a first adsorbent, and a first rust remover, and is installed to reduce the rust in the exhaust gas discharged from the exhaust pipe and to send the exhaust gas to the exhaust pipe. The ammonia injector injects ammonia for mixing with the exhaust gas discharged from the exhaust pipe. The mixer mixes the ammonia injected from the ammonia injector and the exhaust gas discharged from the exhaust pipe. The first adsorbent adsorbs sulfur contained in the off-gas passing through the mixer. The first rust remover removes rust from exhaust gas that has passed through the first sorbent.

또한, 상기의 매연탈질장치는 상기 제1흡착제에서 흡착된 황을 제거할 수 있도록 상기 반응수단으로 공급되는 배출가스를 가열시키기 위한 가열기를 더 포함하는 것이 바람직하다.In addition, the soot denitrification device preferably further comprises a heater for heating the exhaust gas supplied to the reaction means to remove the sulfur adsorbed in the first adsorbent.

또한, 상기의 매연탈질장치는 상기 배기관에서 배출되는 배출가스가 상기 반응수단으로 유입되는 양을 제어하는 제어수단을 더 포함하는 것이 바람직하다.In addition, the soot denitrification device preferably further comprises a control means for controlling the amount of the exhaust gas discharged from the exhaust pipe flows into the reaction means.

또한, 상기의 매연탈질장치는 상기 배기관에서 배출되는 배출가스가 상기 반응수단으로 유입되도록 상기 배기관에서 분기되어 상기 가열기를 거치고 상기 반응수단에 연결된 후 상기 배기관으로 유입되는 반응관을 더 포함하는 것이 바람직하다. 이 경우 상기 제어수단은 상기 반응관이 분기된 후 상기 반응관의 유입되기 전의 상기 배기관에 설치되어 상기 배기관을 개폐하는 바이패스댐퍼와, 상기 가열기로 유입되는 배출가스의 양을 제어하기 위하여 상기 반응관을 개폐할 수 있게 설치된 메인댐퍼를 구비한다.In addition, the soot denitrification device preferably further comprises a reaction tube branched from the exhaust pipe so that the exhaust gas discharged from the exhaust pipe flows into the reaction means and passes through the heater and connected to the reaction means and then flows into the exhaust pipe. Do. In this case, the control means is installed in the exhaust pipe before the reaction pipe is branched after the reaction tube is branched by the bypass damper for opening and closing the exhaust pipe, and the reaction to control the amount of exhaust gas flowing into the heater The main damper is provided to open and close the pipe.

또한, 상기의 매연탈질장치에 있어서, 상기 반응수단은 상기 제1녹스제거제를 통과한 배출가스가 통과하도록 차례로 설치된 제2흡착제 및 제2녹스제거제를 더 구비하는 것이 바람직하다. 이 경우 상기의 매연탈질장치는 보조공급관과, 보조댐퍼를 더 포함한다. 상기 보조공급관은 상기 가열기를 통과한 후 상기 반응수단으로 유입되기 전의 상기 반응관에서 분기되어 상기 제1녹스제거제와 상기 제2흡착제 사이로 유입되도록 상기 반응수단에 연결된다. 상기 보조댐퍼는 상기 보조공급관에 설치되어 상기 보조공급관을 개폐한다.In the soot denitrification apparatus, the reaction means may further include a second adsorbent and a second rusty remover, which are sequentially installed so that the exhaust gas passing through the first rusty remover passes. In this case, the soot denitrification apparatus further includes an auxiliary supply pipe and an auxiliary damper. The auxiliary supply pipe is connected to the reaction means so as to branch from the reaction tube after passing through the heater and before flowing into the reaction means, to flow between the first rusty remover and the second adsorbent. The auxiliary damper is installed in the auxiliary supply pipe to open and close the auxiliary supply pipe.

또한, 상기의 매연탈질장치에 있어서, 상기 반응관은 상기 반응수단에서 나온 후 제1반응관과 제2반응관으로 분기 된 후 상기 배기관으로 유입되기 전 상기 제1반응관과 상기 제2반응관이 합쳐져서 상기 배기관으로 유입되는 것이 바람직하다. 이 경우 상기의 매연탈질장치는 배기팬과, 출구메인댐퍼와, 출구바이패스댐퍼를 더 포함한다. 상기 배기팬은 상기 제2반응관에 설치된다. 상기 출구메인댐퍼는 상기 제1반응관을 개폐하도록 상기 제1반응관에 설치된다. 상기 출구바이패스댐퍼는 상기 제2반응관을 개폐하도록 상기 제2반응관에 설치된다.In addition, in the particulate soot denitrification apparatus, the reaction tube is branched into the first reaction tube and the second reaction tube after exiting the reaction means and before the first reaction tube and the second reaction tube are introduced into the exhaust pipe. It is preferable that these are combined and introduced into the exhaust pipe. In this case, the soot denitrification apparatus further includes an exhaust fan, an outlet main damper, and an outlet bypass damper. The exhaust fan is installed in the second reaction tube. The outlet main damper is installed in the first reaction tube to open and close the first reaction tube. The outlet bypass damper is installed in the second reaction tube to open and close the second reaction tube.

또한, 상기의 매연탈질장치는 재순환관과, 재순환공급댐퍼와, 재순환배출댐퍼를 더 포함하는 것이 바람직하다. 상기 재순환관은 상기 제2반응관에서 분기되어 배출가스가 상기 가열기로 유입되기 전의 반응관으로 합쳐지도록 연결된다. 상기 재순환공급댐퍼는 상기 재순환관을 개폐하도록 상기 재순환관에 설치된다. 상기 재순환배출댐퍼는 상기 재순환관이 분기된 후 상기 제1반응관과 합쳐지기 전의 상기 제2반응관에 설치되어 상기 제2반응관을 개폐한다.In addition, the soot denitrification apparatus preferably further includes a recirculation pipe, a recirculation supply damper, and a recirculation discharge damper. The recirculation tube is branched from the second reaction tube and connected to merge with the reaction tube before the discharge gas is introduced into the heater. The recirculation supply damper is installed in the recirculation pipe to open and close the recirculation pipe. The recirculation discharge damper is installed in the second reaction tube after the recirculation tube is branched and before being combined with the first reaction tube to open and close the second reaction tube.

또한, 상기의 매연탈질장치에 있어서, 상기 제1녹스제거제 및 상기 제2녹스제거제는 선택적 촉매 환원 모듈인 것이 바람직하다.In the above soot denitrification apparatus, the first and second rust removers are preferably selective catalytic reduction modules.

본 발명에 의하면, 제1흡착제 및 제2흡착제가 선택적 촉매 환원(SCR) 모듈의 전단에 설치됨으로 인하여 저온의 배기가스가 황이 제거되어 선택적 촉매 환원 모듈에 공급된다. 그래서 본 실시예에 의하면 선택적 촉매 환원 모듈의 황피복을 방지시켜 선택적 촉매 환원 모듈의 성능 유지 및 수명연장을 할 수 있다.According to the present invention, since the first adsorbent and the second adsorbent are installed at the front end of the selective catalytic reduction (SCR) module, low-temperature exhaust gas is removed to supply sulfur to the selective catalytic reduction module. Thus, according to this embodiment, it is possible to prevent the yellowing of the selective catalytic reduction module to maintain the performance and extend the life of the selective catalytic reduction module.

또한, 본 발명에 의하면, 제1흡착제 및 제2흡착제의 전단에 가열기를 구비함으로 인하여 제1흡착제 및 제2흡착제에 황이 다량 부착된 경우 배출가스를 가열시켜 제1흡착제 및 제2흡착제에 보낸다. 이 경우 가열된 배출가스로 인하여 제1흡착제 및 제2흡착제에 피복된 황을 제거할 수 있다.Further, according to the present invention, when a large amount of sulfur is attached to the first and second adsorbents by providing a heater at the front end of the first and second adsorbents, the exhaust gas is heated and sent to the first and second adsorbents. In this case, sulfur coated on the first adsorbent and the second adsorbent may be removed due to the heated exhaust gas.

또한, 본 발명에 의하면, 바이패스댐퍼 및 메인댐퍼를 구비한 제어수단이 설치됨으로 인하여 매연의 규정이 없고 저질의 연료의 사용으로 배출된 배출가스가 공급될 경우 배출가스를 반응수단에 거치지 않고 바로 외부로 배출시켜서 반응수단을 보호할 수 있다.In addition, according to the present invention, since the control means having a bypass damper and the main damper is installed, there is no specification of soot and when the exhaust gas discharged by the use of low quality fuel is supplied, the exhaust gas is not directly passed through the reaction means. It can be discharged to the outside to protect the reaction means.

도 1은 본 발명에 따른 매연탈질장치의 일 실시예의 개념도,
도 2는 본 발명에 따른 매연탈질장치의 다른 실시예의 개념도이다.1 is a conceptual diagram of an embodiment of a soot denitrification apparatus according to the present invention;
2 is a conceptual diagram of another embodiment of a soot denitrification apparatus according to the present invention.

도 1을 참조하여 본 발명에 따른 매연탈질장치의 일 실시예를 설명한다.Referring to Figure 1 will be described an embodiment of a soot denitrification apparatus according to the present invention.

본 발명에 따른 매연탈질장치는 배기관(10)과, 반응수단(15)과, 가열기(30)와, 제어수단(35)과, 반응관(40)과, 보조공급관(45)과, 보조댐퍼(47)와, 배기팬(49)과, 출구메인댐퍼(51)와, 출구바이패스댐퍼(53)를 포함한다.The soot denitrification apparatus according to the present invention includes an exhaust pipe (10), a reaction means (15), a heater (30), a control means (35), a reaction tube (40), an auxiliary supply pipe (45), and an auxiliary damper. 47, an exhaust fan 49, an outlet main damper 51, and an outlet bypass damper 53.

배기관(10)으로는 배기가스가 배출된다.The exhaust gas is discharged to the exhaust pipe 10.

반응관(40)은 배기관(10)에서 배출되는 배기가스의 녹스를 제거하는 반응수단(15)이 설치되는 관으로서, 배기관(10)의 일측에서 분기되어 나온 후 배기관(10)의 타측에 연결된다. 이때 반응관(40)은 제1반응관(41)과 제2반응관(43)으로 갈라졌다가 다시 합쳐져서 배기관(10)의 타측에 연결된다.The reaction tube 40 is a tube in which the reaction means 15 for removing the rust of the exhaust gas discharged from the exhaust pipe 10 is installed, branched from one side of the exhaust pipe 10, and then connected to the other side of the exhaust pipe 10. do. At this time, the reaction tube 40 is divided into the first reaction tube 41 and the second reaction tube 43, and then joined again to be connected to the other side of the exhaust pipe 10.

반응수단(15)은 반응관(40)에 설치되며, 암모니아 분사기(17)와, 혼합기(18)와, 제1흡착제(19)와, 제1녹스제거제(21)와, 제2흡착제(23)와, 제2녹스제거제(25)를 구비한다. 이때 이들 구성요소들은 반응수단(15)으로 공급되는 배기가스가 암모니아 분사기(17)와, 혼합기(18)와, 제1흡착제(19)와, 제1녹스제거제(21)와, 제2흡착제(23)와, 제2녹스제거제(25)의 순으로 통과하도록 설치된다.The reaction means 15 is installed in the reaction tube 40 and has an ammonia injector 17, a mixer 18, a first adsorbent 19, a first rusty remover 21, and a second adsorbent 23. ) And a second rusty remover 25. At this time, these components are exhaust gas supplied to the reaction means 15, the ammonia injector 17, the mixer 18, the first adsorbent 19, the first rusty remover 21, and the second adsorbent ( 23) and the second rusty remover 25 in order.

암모니아 분사기(17)는 반응수단(15)으로 공급되는 배기가스에 혼합시킬 암모니아를 분사시킨다. 혼합기(18)는 암모니아 분사기(17)에서 분사된 암모니아와 반응수단(15)으로 공급되는 배기가스를 혼합시킨다. 반응수단(15)으로 공급되는 배기가스는 혼합기(18)를 통과하면서 암모니아 분사기(17)에서 분사된 암모니아와 혼합된다. 제1흡착제(19)는 암모니아가 혼합된 배기가스에 포함된 황을 흡착시킨다. 그래서 제1녹스제거제(21)에는 황이 제거된 배기가스가 공급된다.The ammonia injector 17 injects ammonia to be mixed with the exhaust gas supplied to the reaction means 15. The mixer 18 mixes the ammonia injected from the ammonia injector 17 with the exhaust gas supplied to the reaction means 15. The exhaust gas supplied to the reaction means 15 is mixed with the ammonia injected from the ammonia injector 17 while passing through the mixer 18. The first adsorbent 19 adsorbs sulfur contained in the exhaust gas mixed with ammonia. Thus, the first rusty remover 21 is supplied with exhaust gas from which sulfur has been removed.

제1녹스제거제(21)는 SCR(Selective Catalytic Reduction) 모듈로서 배기가스에 함유된 녹스를 제거한다. 즉 암모니아와 혼합된 배기가스는 4NO + 4NH3 + NO + NO2 + 2NH3으로 구성되며 SCR 모듈에 의하여 4N2 + 6H2O + 2N2 + 3H3O로 변환되어 나간다. 그래서 녹스 성분이 제거된다.The first NOx remover 21 removes the NOx contained in the exhaust gas as a SCR (Selective Catalytic Reduction) module. That is, the exhaust gas mixed with ammonia is composed of 4NO + 4NH 3 + NO + NO 2 + 2NH 3 and converted to 4N 2 + 6H 2 O + 2N 2 + 3H 3 O by the SCR module. So the Knox component is removed.

제2흡착제(23) 및 제2녹스제거제(25)는 흡착제와 녹즈제거제를 2단으로 설치함으로써 배기가스에서 녹스 성분을 더욱 확실하게 제거하기 위함니다.The 2nd adsorption agent (23) and the 2nd rusty removal agent (25) install an adsorbent and an anti-rust remover in two stages, and remove the rust component from exhaust gas more reliably.

가열기(30)는 반응수단(15)의 앞에 위치하도록 반응관(40)에 설치된다. 가열기(30)는 제1흡착제(19) 및 제2흡착제(23)에 흡착된 황을 제거하기 위하여 반응수단(15)에 공급되는 배기가스를 가열시킨다.The heater 30 is installed in the reaction tube 40 to be located in front of the reaction means 15. The heater 30 heats the exhaust gas supplied to the reaction means 15 to remove sulfur adsorbed by the first adsorbent 19 and the second adsorbent 23.

제어수단(35)은 배기가스가 배기관(10)을 통하여 바로 외부로 배출되거나 또는 반응수단(15)을 거쳐서 외부로 배출되도록 반응관(40)으로 배기가스를 안내하는 역할을 한다. 이를 위하여 제어수단(35)은 바이패스댐퍼(37)와 메인댐퍼(39)를 구비한다. 바이패스댐퍼(37)는 배기관(10)을 개폐하도록 배기관(10)에 설치되며, 이때 반응관(40)이 분기된 후 반응관(40)이 합쳐지기 전의 배기관(10)에 설치된다. 그래서 바이패스댐퍼(37)가 폐쇄되면 배기가스는 반응관(40)으로 유입되어 반응수단(15)을 통과한 후 배기관(10)을 통하여 외부로 배출된다. 메인댐퍼(39)는 반응관(40)의 입구에 설치되어 반응관(40)을 개폐한다. 즉 배기가스가 가열기(30)로 들어가기 이전의 반응관(40)에 설치된다. 메인댐퍼(39)가 폐쇄되면 배기가스는 반응관(40)을 거치지 않고 배기관(10)을 통하여 바로 외부로 배출된다.The control means 35 serves to guide the exhaust gas to the reaction tube 40 so that the exhaust gas is directly discharged to the outside through the exhaust pipe 10 or discharged to the outside via the reaction means 15. To this end, the control means 35 includes a bypass damper 37 and a main damper 39. The bypass damper 37 is installed in the exhaust pipe 10 to open and close the exhaust pipe 10. In this case, after the reaction pipe 40 is branched, the bypass damper 37 is installed in the exhaust pipe 10 before the reaction pipe 40 is combined. Thus, when the bypass damper 37 is closed, the exhaust gas flows into the reaction tube 40, passes through the reaction means 15, and is discharged to the outside through the exhaust pipe 10. The main damper 39 is installed at the inlet of the reaction tube 40 to open and close the reaction tube 40. That is, the exhaust gas is installed in the reaction tube 40 before entering the heater 30. When the main damper 39 is closed, the exhaust gas is discharged directly to the outside through the exhaust pipe 10 without passing through the reaction tube 40.

보조공급관(45)은 반응관(40)으로 유입된 배기가스가 가열기(30)를 통과한 후 제1녹스제거제(21)와 제2흡착제(23) 사이로 유입될 수 있도록 한다. 이를 위하여 보조공급관(45)은 가열기(30)를 통과한 후 반응수단(15)으로 유입되기 전의 반응관(40)에서 분기되어 제1녹스제거제(21)와 제2흡착제(23) 사이의 반응수단(15)에 연결된다. 보조댐퍼(47)는 보조공급관(45)에 설치되어 보조공급관(45)을 개폐한다. 즉 보조댐퍼(47)를 개방시키면 가열기(30)를 통과한 배기가스는 일부는 반응수단(15)으로 바로 유입되고 나머지는 보조공급관(45)을 통하여 반응수단(15)의 제1녹스제거제(21)와 제2흡착제(23) 사이로 유입된다. 만약 보조댐퍼(47)를 폐쇄시키면 가열기(30)를 통과한 배기가스는 모두 반응수단(15)으로 바로 유입된다.The auxiliary supply pipe 45 allows the exhaust gas introduced into the reaction tube 40 to flow between the first rusty remover 21 and the second adsorbent 23 after passing through the heater 30. To this end, the auxiliary supply pipe 45 is branched from the reaction tube 40 after passing through the heater 30 and before entering the reaction means 15 to react between the first rust remover 21 and the second adsorbent 23. Connected to the means 15. The auxiliary damper 47 is installed in the auxiliary supply pipe 45 to open and close the auxiliary supply pipe 45. That is, when the auxiliary damper 47 is opened, some of the exhaust gas passing through the heater 30 flows directly into the reaction means 15, and the other part of the exhaust gas passes through the auxiliary supply pipe 45. 21) and the second adsorbent (23). If the auxiliary damper 47 is closed, all the exhaust gas passing through the heater 30 flows directly into the reaction means 15.

배기팬(49)은 제2반응관(43)에 설치된다. 출구메인댐퍼(51)는 제1반응관(41)에 설치되어 제1반응관(41)을 개폐하며, 출구바이패스댐퍼(53)는 제2반응관(43)에 설치되어 제2반응관(43)을 개폐한다.The exhaust fan 49 is installed in the second reaction tube 43. The outlet main damper 51 is installed in the first reaction tube 41 to open and close the first reaction tube 41, and the outlet bypass damper 53 is installed in the second reaction tube 43 to the second reaction tube. Open and close the 43.

이하에서는 본 실시예의 동작을 설명한다. 먼저 선박에서 배출되는 배기가스에서 녹스를 저감시킬 필요가 있을 경우 반응수단(15)을 동작시켜야 한다.The operation of this embodiment will be described below. First, if it is necessary to reduce the rust in the exhaust gas discharged from the vessel should operate the reaction means (15).

이 경우 바이패스댐퍼(37)가 폐쇄되고 메인댐퍼(39)가 개방되며, 보조댐퍼(47) 및 출구바이패스댐퍼(53)가 폐쇄되고 출구메인댐퍼(51)가 개방된다. 그러면 배기관(10)으로 유입되는 배기가스는 반응관(40)으로 유입되어, 반응수단(15)을 거쳐서 제1반응관(41) 및 배기관(10)을 거쳐서 외부로 배출된다. 배기관(10)으로 유입되는 배기가스는 대략 온도가 220 ~ 240℃이며, 이때에는 가열기(30)가 가동하지 아니하므로 220 ~ 240℃의 저온의 배기가스는 바로 반응수단(15)으로 유입된다.In this case, the bypass damper 37 is closed, the main damper 39 is opened, the auxiliary damper 47 and the outlet bypass damper 53 are closed, and the outlet main damper 51 is opened. Then, the exhaust gas flowing into the exhaust pipe 10 flows into the reaction tube 40 and is discharged to the outside via the first reaction tube 41 and the exhaust pipe 10 via the reaction means 15. The exhaust gas flowing into the exhaust pipe 10 has a temperature of approximately 220 to 240 ° C. At this time, since the heater 30 does not operate, the exhaust gas having a low temperature of 220 to 240 ° C is directly introduced into the reaction means 15.

배기가스가 반응수단(15)으로 유입되면 암모니아 분사기(17)에서 암모니아가 분사되고, 그래서 배기가스와 암모니아는 혼합기(18)에서 서로 혼합된다. 암모니아가 혼합된 배기가스는 제1흡착제(19)를 통과하면서 황이 제1흡착제(19)에 피독된다. 황이 제거된 배기가스는 SCR 모듈로 된 제1녹스제거제(21)를 통과하면서 녹스가 제거된다. 제1녹스제거제(21)를 통과한 배기가스는 제2흡착제(23) 및 제2녹스제거제(25)를 한번 더 통과하면서 녹스가 더욱더 제거된다. 배기가스에 함유된 황은 제1흡착제(19) 및 제2흡착제(23)에서 흡착되므로, 황피독은 제1흡착제(19) 및 제2흡착제(23)에서 발생되며 제1녹스제거제(21) 및 제2녹스제거제(25)에는 황이 제거된 배기가스가 유입된다. 그러므로 제1녹스제거제(21) 및 제2녹스제거제(25)에 황피독이 발생하는 것을 방지할 수 있어서 제1녹스제거제(21) 및 제2녹스제거제(25)의 성능 저하를 방지할 수 있고 수명을 연장시킬 수 있다.When the exhaust gas flows into the reaction means 15, ammonia is injected in the ammonia injector 17, so that the exhaust gas and ammonia are mixed with each other in the mixer 18. The exhaust gas mixed with ammonia passes through the first adsorbent 19 and sulfur is poisoned by the first adsorbent 19. The sulfur-free exhaust gas passes through the first rusty remover 21 of the SCR module to remove the rusty. The exhaust gas passing through the first rusty remover 21 passes through the second adsorbent 23 and the second rusty remover 25 once more to further remove the rusty. Since sulfur contained in the exhaust gas is adsorbed in the first adsorbent 19 and the second adsorbent 23, sulfur poisoning is generated in the first adsorbent 19 and the second adsorbent 23, and the first rusty remover 21 and The sulfur removal agent 25 flows into the second rusty remover 25. Therefore, it is possible to prevent the occurrence of sulfur poisoning in the first rusty remover 21 and the second rusty remover 25, thereby preventing the deterioration of the performance of the first rusty remover 21 and the second rusty remover 25 and the lifetime. Can be extended.

제1흡착제(19) 및 제2흡착제(23)에 황피독이 심할 경우 제1흡착제(19) 및 제2흡착제(23)의 황피독 성능이 감소된다. 이 경우 제1흡착제(19) 및 제2흡착제(23)에 피독된 황을 제거하여야 한다. When the poisoning of the first adsorbent 19 and the second adsorbent 23 is severe, the sulfur poisoning performance of the first adsorbent 19 and the second adsorbent 23 is reduced. In this case, the poisoned sulfur in the first and second adsorbents 19 and 23 should be removed.

이 경우 바이패스댐퍼(37)가 일부만 닫히고, 메인댐퍼(39)가 일부만 개방된다. 그리고 보조댐퍼(47) 및 출구바이패스댐퍼(53)가 개방되고, 출구메인댐퍼(51)가 폐쇄된다. 그러면 배기관(10)으로 유입된 배기가스는 일부는 바로 외부로 배출되며 나머지는 반응관(40)으로 유입된다. 이때 반응관(40)으로 유입되는 배기가스의 압력이 약하므로 배기팬(49)이 작동하여 배기가스를 반응관(40)으로 유입시킨다. 반응관(40)으로 배기가스가 유입되면 가열기(30)가 작동하여 배기가스를 가열시킨다. 이때 배기가스는 340 ~ 380℃로 가열된다. 가열기(30)에서 가열된 배기가스는 일부는 바로 반응수단(15)으로 유입되어 제1흡착제(19)로 들어가고 나머지는 제2흡착제(23)로 들어간다. 이때 암모니아 분사기(17)는 작동하지 않는다. 가열기(30)에서 가열된 고온의 배기가스는 제1흡착제(19) 및 제2흡착제(23)에 피독된 황을 태워서 제1흡착제(19) 및 제2흡착제(23)로부터 탈황시킨다. 제1흡착제(19) 및 제2흡착제(23)를 통과한 배기가스는 제2반응관(43)을 통하여 배기관(10)으로 배출되어 나간다. In this case, only part of the bypass damper 37 is closed, and only part of the main damper 39 is opened. The auxiliary damper 47 and the outlet bypass damper 53 are opened, and the outlet main damper 51 is closed. Then, some of the exhaust gas introduced into the exhaust pipe 10 is discharged directly to the outside, and the other is introduced into the reaction tube 40. At this time, since the pressure of the exhaust gas flowing into the reaction tube 40 is weak, the exhaust fan 49 operates to introduce the exhaust gas into the reaction tube 40. When the exhaust gas flows into the reaction tube 40, the heater 30 operates to heat the exhaust gas. At this time, the exhaust gas is heated to 340 ~ 380 ℃. Part of the exhaust gas heated in the heater 30 directly enters the reaction means 15, enters the first adsorbent 19, and the rest enters the second adsorbent 23. At this time, the ammonia injector 17 does not operate. The hot exhaust gas heated in the heater 30 burns sulfur poisoned in the first adsorbent 19 and the second adsorbent 23 to be desulfurized from the first adsorbent 19 and the second adsorbent 23. The exhaust gas passing through the first adsorbent 19 and the second adsorbent 23 is discharged to the exhaust pipe 10 through the second reaction tube 43.

배기가스에서 녹스가 없어서 배기가스에서 녹스를 제거할 필요가 없을 경우 또는 안전상 필요한 경우 배기가스를 바로 외부로 배출시킨다. 그래서 배기가스를 반응수단(15)에 통과시키지 않고 바로 외부로 배출시킨다.If there is no rust in the exhaust gas and it is not necessary to remove the rust from the exhaust gas or if it is necessary for safety, the exhaust gas is discharged directly to the outside. Thus, the exhaust gas is immediately discharged to the outside without passing through the reaction means 15.

이 경우에는 바이패스댐퍼(37)가 개방되고 메인댐퍼(39)가 폐쇄된다. 그러면 배기가스는 배기관(10)을 통하여 바로 외부로 배출된다.In this case, the bypass damper 37 is opened and the main damper 39 is closed. The exhaust gas is then immediately discharged to the outside through the exhaust pipe (10).

따라서 본 출원의 경우 녹스를 저감시킬 필요가 있을 경우에만 배기가스를 반응수단(15)으로 공급시키며, 이때에는 제1흡착제(19) 및 제2흡착제(21)를 사용하므로 SCR 모듈에 황피독이 발생하는 것을 방지시킬 수 있다. 그래서 SCR 모듈의 성능저하를 방지할 수 있으며 수명을 연장시킬 수 있다. 또한 가열기(30)를 사용하여 배기가스를 가열시킴으로써 제1흡착제(19) 및 제2흡착제(21)에 피독된 황을 제거할 수 있다.Therefore, in the case of the present application, the exhaust gas is supplied to the reaction means 15 only when it is necessary to reduce the rust. In this case, since the first adsorbent 19 and the second adsorbent 21 are used, sulfur poisoning occurs in the SCR module. Can be prevented. Thus, the performance degradation of the SCR module can be prevented and the life can be extended. In addition, sulfur poisoned by the first and second adsorbents 19 and 21 can be removed by heating the exhaust gas using the heater 30.

도 2는 본 발명에 따른 매연탈질장치의 다른 실시예의 개념도이다. 도 2는 도 1에 도시된 실시예에서 에너지 효율을 높이기 위하여 배출가스를 재사용하는 실시예이다. 이를 위하여 도 2에 도시된 실시예는 도 1에 도시된 실시예에서 재순환관(55)과, 재순환공급댐퍼(57)와, 재순환배출댐퍼(59)를 더 포함한다. 나머지 구성요소는 도 1에 도시된 실시예와 동일하므로 생략한다.2 is a conceptual diagram of another embodiment of a soot denitrification apparatus according to the present invention. FIG. 2 is an embodiment in which the exhaust gas is reused to increase energy efficiency in the embodiment shown in FIG. 1. To this end, the embodiment shown in FIG. 2 further includes a recirculation pipe 55, a recirculation supply damper 57, and a recirculation discharge damper 59 in the embodiment shown in FIG. 1. The remaining components are the same as the embodiment shown in FIG. 1 and will be omitted.

재순환관(55)은 제2반응관(43)에서 분기되어 배출가스가 가열기(30)로 유입되기 전의 반응관(40)으로 합쳐지도록 연결된다.The recycle tube 55 is branched from the second reaction tube 43 and connected to the reaction tube 40 before the discharge gas is introduced into the heater 30.

재순환공급댐퍼(57)는 재순환관(55)을 개폐하도록 재순환관(55)에 설치된다.The recirculation supply damper 57 is installed in the recirculation pipe 55 to open and close the recirculation pipe 55.

재순환배출댐퍼(59)는 재순환관(55)이 분기된 후 제1반응관(41)과 합쳐지기 전의 제2반응관(43)에 설치되어 제2반응관(43)을 개폐한다.The recirculation discharge damper 59 is installed in the second reaction tube 43 after the recirculation tube 55 is branched and before being combined with the first reaction tube 41 to open and close the second reaction tube 43.

도 1에 도시된 실시예의 경우 제1흡착제(19) 및 제2흡착제(23)의 황피독을 제거하기 위하여 가열기(30)로 배출가스를 계속 가열하여 반응수단(15)에 공급한다. 이 경우 저온의 배출가스를 계속 가열해야 하므로 에너지 효율이 낮다. 도 2에 도시된 실시예는 가열기(30)로 배출가스를 가열하여 제1흡착판(19) 및 제2흡착판(23)의 황피독을 제거할 경우 재순환공급댐퍼(57)가 일부 개방되고, 재순환배출댐퍼(59)가 일부 폐쇄된다. 그러면 반응수단(15)으로 배출되는 고온의 배출가스는 일부는 재순환관(55)을 통하여 가열기(30)로 들어가는 반응관(40)으로 유입된다. 그래서 가열기(30)에는 배기관(10)에서 유입되는 저온의 배출가스와 반응수단(15)을 통과한 고온을 배출가스가 혼합되어 들어간다. 따라서 가열기(30)에 공급되는 배출가스의 온도가 높으므로 가열기(30)에서 가열하는 에너지의 소비를 줄일 수 있다.In the case of the embodiment shown in Figure 1 in order to remove the sulfur poisoning of the first adsorbent 19 and the second adsorbent 23, the exhaust gas is continuously heated to the heater 30 is supplied to the reaction means (15). In this case, the energy efficiency is low because the low temperature exhaust gas must be continuously heated. In the embodiment shown in FIG. 2, when the exhaust gas is heated by the heater 30 to remove the sulfur poisoning of the first and second adsorption plates 19 and 23, the recirculation supply damper 57 is partially opened and recycled. The discharge damper 59 is partially closed. Then, a part of the hot exhaust gas discharged to the reaction means 15 is introduced into the reaction tube 40 entering the heater 30 through the recirculation tube 55. Thus, the heater 30 enters a low temperature exhaust gas introduced from the exhaust pipe 10 and a high temperature exhaust gas passed through the reaction means 15. Therefore, since the temperature of the exhaust gas supplied to the heater 30 is high, the consumption of energy heated by the heater 30 can be reduced.

10 : 배기관 15 : 반응수단
17 : 암모니아 분사기 18 : 혼합기
19 : 제1흡착제 21 : 제1녹스제거제
23 : 제2흡착제 25 : 제2녹스제거제
30 : 가열기 35 : 제어수단
37 : 바이패스댐퍼 39 : 메인댐퍼
40 : 반응관 41 : 제1반응관
43 : 제2반응관 45 : 보조공급관
47 : 보조댐퍼 49 : 배기팬
51 : 출구메인댐퍼 53 : 출구바이패스댐퍼
55 : 재순환관 57 : 재순환공급댐퍼
59 : 재순환배출댐퍼10: exhaust pipe 15: reaction means
17: ammonia injector 18: mixer
19: first adsorbent 21: first rusty remover
23: the second adsorbent 25: the second rusty remover
30: heater 35: control means
37: bypass damper 39: main damper
40: reaction tube 41: first reaction tube
43: second reaction pipe 45: auxiliary supply pipe
47: auxiliary damper 49: exhaust fan
51: exit main damper 53: exit bypass damper
55: recirculation pipe 57: recirculation supply damper
59: recycle discharge damper

Claims (8)

배기관과,
상기 배기관에서 분기되어 다시 상기 배기관에 유입되는 반응관과,
상기 반응관으로 배출되는 배출가스에 혼합시키기 위한 암모니아를 분사시키는 암모니아 분사기와, 상기 암모니아 분사기에서 분사된 암모니아와 상기 배출가스를 혼합시키기 위한 혼합기와, 상기 혼합기를 통과한 배출가스에 함유된 황을 흡착시키는 제1흡착제와, 상기 제1흡착제를 통과한 배출가스에서 녹스를 제거하는 제1녹스제거제와, 상기 제1녹스제거제를 통과한 배출가스가 통과하도록 설치된 제2흡착제와, 상기 제2흡착제를 통과한 배출가스가 통과하도록 설치된 제2녹스제거제를 구비하며, 상기 반응관에 설치된 반응수단과,
상기 제1흡착제에서 흡착된 황을 제거할 수 있도록 상기 반응수단으로 공급되는 배출가스를 가열시키기 위하여 상기 반응관에 설치된 가열기와,
상기 배기관에서 상기 반응관이 분기된 후 상기 반응관이 상기 배기관에 유입되기 전의 상기 배기관에 설치되어 상기 배기관을 개폐하는 바이패스댐퍼와, 상기 가열기로 유입되는 배출가스의 양을 제어하기 위하여 상기 반응관을 개폐할 수 있게 설치된 메인댐퍼를 구비하는 제어수단과,
상기 가열기를 통과한 후 상기 반응수단으로 유입되기 전의 상기 반응관에서 분기되어 상기 제1녹스제거제와 상기 제2흡착제 사이로 유입되도록 상기 반응수단에 연결된 보조공급관과, 상기 보조공급관에 설치되어 상기 보조공급관을 개폐하는 보조댐퍼를 포함하는 것을 특징으로 하는 매연탈질장치.Exhaust pipe,
A reaction tube branched from the exhaust pipe and flowing back into the exhaust pipe;
An ammonia injector for injecting ammonia for mixing with the exhaust gas discharged to the reaction tube, a mixer for mixing ammonia injected from the ammonia injector with the exhaust gas, and sulfur contained in the exhaust gas passing through the mixer; A first adsorbent for adsorption, a first nox agent for removing nox from the exhaust gas passing through the first adsorbent, a second adsorbent installed to allow the exhaust gas passing through the first nox agent to pass through, and the second adsorbent And a second rusty remover installed to allow the exhaust gas to pass through, and the reaction means installed in the reaction tube;
A heater installed in the reaction tube to heat the exhaust gas supplied to the reaction means to remove sulfur adsorbed in the first adsorbent;
A bypass damper installed in the exhaust pipe after the reaction pipe is branched from the exhaust pipe and before the reaction pipe is introduced into the exhaust pipe to open and close the exhaust pipe, and to control the amount of exhaust gas flowing into the heater. A control means having a main damper installed to open and close the pipe;
An auxiliary supply pipe connected to the reaction means so as to branch from the reaction tube after passing through the heater and into the reaction means and flow into the first knox remover and the second adsorbent, and installed in the auxiliary supply pipe; A soot denitrification apparatus comprising an auxiliary damper for opening and closing a door. 제1항에 있어서,
상기 반응관은 상기 반응수단에서 나온 후 제1반응관과 제2반응관으로 분기 된 후 상기 배기관으로 유입되기 전 상기 제1반응관과 상기 제2반응관이 합쳐져서 상기 배기관으로 유입되며,
상기 제2반응관에 설치된 배기팬과, 상기 제1반응관을 개폐하도록 상기 제1반응관에 설치된 출구메인댐퍼와, 상기 제2반응관을 개폐하도록 상기 제2반응관에 설치된 출구바이패스댐퍼를 더 포함하는 것을 특징으로 하는 매연탈질장치.The method of claim 1,
The reaction tube is branched into the first reaction tube and the second reaction tube after exiting the reaction means, and the first reaction tube and the second reaction tube are introduced into the exhaust pipe before entering the exhaust pipe.
An exhaust main damper provided in the second reaction tube, an outlet main damper provided in the first reaction tube to open and close the first reaction tube, and an outlet bypass damper provided in the second reaction tube to open and close the second reaction tube. A soot denitrification apparatus further comprising a. 제2항에 있어서,
상기 제2반응관에서 분기되어 배출가스가 상기 가열기로 유입되기 전의 반응관으로 합쳐지도록 연결된 재순환관과,
상기 재순환관을 개폐하도록 상기 재순환관에 설치된 재순환공급댐퍼와,
상기 재순환관이 분기된 후 상기 제1반응관과 합쳐지기 전의 상기 제2반응관에 설치되어 상기 제2반응관을 개폐하는 재순환배출댐퍼를 더 포함하는 것을 특징으로 하는 매연탈질장치.The method of claim 2,
A recirculation pipe branched from the second reaction pipe and connected to the reaction pipe before the discharge gas enters the heater;
A recirculation supply damper installed in the recirculation pipe to open and close the recirculation pipe;
And a recirculation discharge damper installed in the second reaction tube after the recirculation tube is branched and before being combined with the first reaction tube to open and close the second reaction tube. 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 제1녹스제거제 및 상기 제2녹스제거제는 선택적 촉매 환원 모듈인 것을 특징으로 하는 매연탈질장치.
4. The method according to any one of claims 1 to 3,
The first NOx remover and the second NOx remover is a selective catalytic reduction module, characterized in that the denitrification apparatus.
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KR1020110137181A 2011-12-19 2011-12-19 A smoke reduction apparatus of a exhaust gas KR101236782B1 (en)

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WO2015034168A1 (en) * 2013-09-09 2015-03-12 두산엔진주식회사 Selective catalyst reduction system
CN105233669A (en) * 2015-10-19 2016-01-13 上海盛剑环境系统科技有限公司 Flue gas denitrification SCR system
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KR102383963B1 (en) 2018-11-02 2022-04-06 디에이에스 인바이런멘탈 엑스퍼트 게엠베하 Apparatus and method for wet cleaning a gas stream
KR102080270B1 (en) 2019-08-07 2020-02-21 정재억 Denitrification equipment using microbubble and exhaust gas treatment system with the same
KR102184996B1 (en) * 2019-10-31 2020-12-01 에이치엘비파워(주) Smart waste heat recovery system with minimum fluid control resistance

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