KR20180000852U - Treatment system of NOx/SOx/HCl - Google Patents
Treatment system of NOx/SOx/HCl Download PDFInfo
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- KR20180000852U KR20180000852U KR2020160005444U KR20160005444U KR20180000852U KR 20180000852 U KR20180000852 U KR 20180000852U KR 2020160005444 U KR2020160005444 U KR 2020160005444U KR 20160005444 U KR20160005444 U KR 20160005444U KR 20180000852 U KR20180000852 U KR 20180000852U
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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
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
- C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
본 고안은 대기 중의 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)를 처리하는 장치에 관한 것이다.
본 고안은 이를 위하여 산화제 및 세정액으로 사용되는 용액인 차아염소산나트륨을 일정농도로 생성시키는 전기분해장치 모듈과, 집진기 등으로부터 본 장치로 유입되는 배가스를 전기분해장치 모듈에서 생성된 차아염소산나트륨 용액과 제적으로 접촉시키는 세정탑 모듈로 장치를 구성하여 대기 중의 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)를 효율적으로 제거하는 장치 및 방법을 제공한다.
상기와 같이 구성된 본 고안은 배가스로 유입되는 대기 중의 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)를 효율적으로 처리하여, 배가스 처리에 어려움을 겪고 있는 각종 시설 및 사업장에 경제성과 친환경성을 제공하도록 하는 매우 유용한 고안이다.The present invention relates to a device for treating nitrogen oxides (NOx), sulfur oxides (SOx) and hydrogen chloride (HCl) in the atmosphere.
The present invention relates to an electrolytic device module for producing a sodium hypochlorite solution, which is a solution used as an oxidant and a rinse solution, for this purpose, and a flue gas introduced into the apparatus from a dust collector or the like is mixed with a sodium hypochlorite solution (NOx), sulfur oxides (SOx), and hydrogen chloride (HCl) from the atmosphere by constituting a device using a cleaning tower module which is brought into contact with the cleaning tower module.
The present invention is configured to efficiently treat nitrogen oxides (NOx), sulfur oxides (SOx), and hydrogen chloride (HCl) in the air flowing into the flue gas to provide economical and environmentally friendly It is a very useful tool to provide sex.
Description
본 고안은 각종 원인에 의하여 대기 중으로 배출되는 대기오염물질을 처리하기 위한 장치에 관한 것으로, 더욱 상세하게는 각종 산업체의 공정, 화력발전소, 각종 소각설비, 자동차 및 선박의 디젤엔진 등의 다양한 오염원에서 발생되어 배출되는 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)등을 처리하기 위하여, 전기화학적인 기술을 적용, 전기분해에 의하여 생성되는 산화제 및 세정액을 대기 중으로 배출되는 질소산화물(NOx), 황산화물(SOx)과 반응시켜 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl) 등을 처리 할 수 있는 장치 및 그 방법에 관한 것이다.The present invention relates to a device for treating air pollutants discharged into the atmosphere by various causes, and more particularly, to a device for treating various pollutants such as various industrial processes, thermal power plants, various incineration facilities, In order to treat nitrogen oxides (NOx), sulfur oxides (SOx), hydrogen chloride (HCl), etc. generated and discharged, electrochemical techniques are applied, oxidizing agents generated by electrolysis, and nitrogen oxides (NOx), sulfur oxides (SOx), hydrogen chloride (HCl), etc. by reacting with sulfur oxides (NOx) and sulfur oxides (SOx), and a method thereof.
소각설비 및 각종 산업체의 공정이나 발전설비 등에서 다량 발생되는 먼지, 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)의 배출규제가 점점 강화되어감에 따라 배출량 저감이 절실히 요구되는 실정이다.(NOx), sulfur oxides (SOx), and hydrogen chloride (HCl), which are generated in a large number of industrial processes and power generation facilities, are increasingly required to reduce emissions .
기존의 처리기술 또는 장치로는 처리 대상에 따라 다양한 방법들이 적용되고 있는데, 황산화물의 경우에는 습식, 반건식, 건식 세정법을, 질소산화물은 선택적 촉매환원법(Selective Catalytic Reduction)과 선택적 무 촉매환원법(Selective Non Catalytic Reduction)을 적용하고 있다. 이 외에는 전기집진기, 싸이클론, 백필터 등의 집진기가 이용되고 있는 실정이다.Conventional treatment techniques or apparatuses include various methods depending on the object to be treated. In the case of sulfur oxides, wet, semi-dry and dry cleaning methods are used, while nitrogen oxides are selectively removed by selective catalytic reduction and selective catalytic reduction Non Catalytic Reduction). Other than these, dust collectors such as an electrostatic precipitator, a cyclone, and a bag filter are used.
따라서, 연소나 소각 배가스 내의 황산화물과 질소산화물 등을 동시에 모두 처리할 수 있는 대기오염 방지 시스템의 규모는 점점 커지게 되어 처리 업체의 경제적인 부담이 가중되고 있는 실정이다.Therefore, the scale of the air pollution prevention system capable of simultaneously treating both sulfur oxides and nitrogen oxides in the combustion and incineration flue gas becomes larger and the economical burden of the processing companies is increasing.
특히, 현재 국내에서 일반적으로 적용되고 있는 폐기물 소각로는 대체적으로 소각보일러→싸이크론→스크러버(또는 반건식흡수제)→여과집진장치(또는 전기집진장치)→Stack 등의 공정으로 구성 되어 있다. Especially, waste incinerators generally applied in Korea are generally composed of incineration boiler → cyclone → scrubber (or semi-dry absorbent) → filtration dust collector (or electric dust collector) → Stack.
일반적으로 폐기물소각로 업체에서 주로 사용하고 있는 황산화물, 질소산화물의 유해가스 처리방법은 반건식 세정탑인데, 반건식 세정탑은 약품 사용량이 많고 노즐의 마모가 심한 문제점을 갖고 있으며, NOx 처리기술의 효율이 매우 낮거나, 환원제로 사용되는 암모니아의 배출로 2차적 대기오염문제가 발생되며, 설치비 및 운전비가 다소 많이 소요되는 특성을 지니고 있다.In general, waste gas incineration plant mainly uses sulfuric acid and nitrogen oxide to treat harmful gas. However, semi-dry cleaning tower has a problem of high consumption of chemicals and abrasion of nozzles. The emission of ammonia, which is very low or used as a reducing agent, causes secondary air pollution problems, and has a characteristic that installation and operation costs are somewhat high.
본 고안은 상기와 같은 종래 기술의 제반 문제점들을 감안하여 이러한 문제점들을 해소하기 위하여 안출한 것으로, 전기분해장치를 이용하여 산화제 및 세정액으로 사용되는 차아염소산나트륨을 적정한 농도로 발생시켜, 습식 스크라바 내에서 분무노즐 등의 각종 수단으로 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)와 반응시켜 배가스에 포함된 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)를 제거하는 장치를 제공하는데 그 목적이 있다. The present invention has been made in order to solve these problems in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide an electrolytic apparatus capable of generating an appropriate concentration of sodium hypochlorite used as an oxidizing agent and a cleaning liquid, (NOx), sulfur oxides (SOx), and hydrogen chloride (HCl) contained in the exhaust gas by reacting with nitrogen oxides (NOx), sulfur oxides (SOx), and hydrogen chloride The purpose of the device is to provide.
상기와 같은 목적을 달성하기 위하여 본 고안은 배가스에 포함된 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)를 처리하기 위하여, 산화제 및 세정액으로 사용 가능한 용액이 되는 적정농도의 차아염소산나트륨 용액을 생성시키는 전기분해장치 및 정류기 모듈로 구성되는 단계와, 집진기 등으로부터 본 장치로 유입되는 배가스를 전기분해장치 모듈에서 생성된 차아염소산나트륨 용액과 강제적으로 접촉시키는 세정탑 모듈로 구성되는 단계를 포함하는 장치 및 방법을 제공한다.In order to achieve the above object, the present invention provides a method for treating nitrogen oxides (NOx), sulfur oxides (SOx), and hydrogen chloride (HCl) contained in an exhaust gas using an oxidizing agent and an appropriate concentration of hypochlorous acid And a cleaning tower module for forcibly contacting the flue gas introduced into the apparatus from a dust collector or the like with the sodium hypochlorite solution produced in the electrolytic apparatus module, The present invention provides an apparatus and a method including the steps of:
상기에서 상세히 살펴 본 바와 같이 본 고안에 따른, 산화제 및 세정액으로 사용하기 위하여 전기분해장치 모듈에서 생성된 차아염소산나트륨을 이용한 장치 및 그 방법에 따르면, 배가스에 포함된 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)를 효율적으로 처리 할 수 있다.As described in detail above, according to the apparatus and the method using sodium hypochlorite produced in the electrolytic device module for use as the oxidizing agent and the cleaning liquid according to the present invention, the nitrogen oxide (NOx), sulfur oxide (SOx) and hydrogen chloride (HCl) can be efficiently treated.
이상에서는 본 고안을 특정의 바람직한 실시 예를 들어 도시하고 설명하였으나, 본 고안은 상기한 실시 예에 한정되지 아니하며 본 고안의 정신을 벗어나지 않는 범위 내에서 당해 고안이 속하는 기술 분야에서 통상의 지식을 가진 자에 의하여 다양한 변경과 수정이 가능할 것이다.While the present invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that the present invention is not limited to the above embodiments and that various changes and modifications may be made without departing from the spirit and scope of the invention. Various changes and modifications will be possible.
도 1은 본 고안에 따른 처리방법의 흐름도(개념도)1 is a flowchart (conceptual view) of a processing method according to the present invention;
첨부된 도 1은 본 고안에 따른 전기분해에서 생성된 차아염소산나트륨을 이용한 질소산화물(NOx), 황산화물(SOx), 염화수소(HCl)를 처리하기 위한 개념을 나타낸 흐름도이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart illustrating a concept for treating nitrogen oxides (NOx), sulfur oxides (SOx), and hydrogen chloride (HCl) using sodium hypochlorite produced in electrolysis according to the present invention.
본 고안은 도 1에 도시된 바와 같이, 해수 또는 염수를 전기분해장치를 통과시켜 전기분해를 하여 산화제 및 세정액으로 활용가능한 차아염소산나트륨을 생성하는 단계(STEP 1)와 ;As shown in FIG. 1, the present invention includes a step (STEP 1) of generating sodium hypochlorite which can be used as an oxidant and a cleaning liquid by electrolyzing seawater or salt water through an electrolytic apparatus;
이 단계 후에 스크라바 내에서 차아염소산나트륨을 배가스와 접촉시켜 처리하는 단계(STEP 2)로 구성되는 처리방법 및 장치이다.And a step (STEP 2) of treating sodium hypochlorite in contact with the flue gas in the scraper after this step.
본 고안에 관련된 산화제 및 세정액인 차아염소산나트륨을 생성시키는 반응식은 다음과 같다.The reaction formula for generating sodium hypochlorite, which is an oxidant and a cleaning liquid, related to the present invention is as follows.
NaCl + H2O → NaOCl + H2 NaCl + H 2 O → NaOCl + H 2
양극 반응 : 2Cl → Cl2 + 2e- Anode reaction: 2Cl → Cl 2 + 2e -
음극 반응 : 2Na + 2H2O + 2e- → 2NaOH + H2 Cathode reaction: 2Na + 2H 2 O + 2e - → 2NaOH + H 2
전극 반응 : Cl2 + 2NaOH → NaOCl + NaCl + H2OElectrode reaction: Cl 2 + 2 NaOH → NaOCl + NaCl + H 2 O
본 고안에 관련된 질소산화물, 황산화물의 처리에 사용되는 반응식은 다음과 같다.The reaction formulas used in the treatment of nitrogen oxides and sulfur oxides related to the present invention are as follows.
NO + HOCl → NO2 + HClNO + HOCl → NO 2 + HCl
SO2 + HOCl → SO3 + HClSO 2 + HOCl -> SO 3 + HCl
NO2 + NaClO → NO3 + NaClNO 2 + NaClO → NO 3 + NaCl
SO2 + H20 + NaClO → NaCl + H2SO4 SO 2 + H 2 O + NaClO - > NaCl + H 2 SO 4
이상에서는 본 고안을 특정의 바람직한 실시 예를 들어 도시하고 설명하였으나, 본 고안은 상기한 실시 예에 한정되지 아니하며 본 고안의 정신을 벗어나지 않는 범위 내에서 당해 고안이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 다양한 변경과 수정이 가능할 것이다.While the present invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that the present invention is not limited to the above embodiments and that various changes and modifications may be made without departing from the spirit and scope of the invention. Various changes and modifications may be made by those skilled in the art.
STEP 1, STEP 2 : 처리 단계STEP 1, STEP 2: Processing step
Claims (1)
이 단계 후에 스크라바 내에서 차아염소산나트륨을 배가스와 접촉시켜 처리하는 단계(STEP 2)로 구성되는 것을 특징으로 하는 처리방법 및 장치.Electrolyzing seawater or salt water to produce sodium hypochlorite (STEP 1);
And a step (STEP 2) of treating sodium hypochlorite in contact with the flue gas in the scrubber after this step.
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| KR2020160005444U KR20180000852U (en) | 2016-09-20 | 2016-09-20 | Treatment system of NOx/SOx/HCl |
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| KR2020160005444U KR20180000852U (en) | 2016-09-20 | 2016-09-20 | Treatment system of NOx/SOx/HCl |
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| KR20180000852U true KR20180000852U (en) | 2018-03-28 |
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2016
- 2016-09-20 KR KR2020160005444U patent/KR20180000852U/en not_active Application Discontinuation
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