KR100279922B1 - Waste gas treatment method and apparatus generated in organic matter oxidation process - Google Patents

Waste gas treatment method and apparatus generated in organic matter oxidation process Download PDF

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KR100279922B1
KR100279922B1 KR1019980023419A KR19980023419A KR100279922B1 KR 100279922 B1 KR100279922 B1 KR 100279922B1 KR 1019980023419 A KR1019980023419 A KR 1019980023419A KR 19980023419 A KR19980023419 A KR 19980023419A KR 100279922 B1 KR100279922 B1 KR 100279922B1
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waste gas
catalyst
water
carbon monoxide
oxidation process
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KR20000002584A (en
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임성식
조영관
송병준
이재성
이성우
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고홍식
삼성석유화학주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/24—Nitrogen compounds
    • B01J27/25—Nitrates
    • 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
    • B01D53/864—Removing carbon monoxide or hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/28—Regeneration or reactivation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00—Regeneration or reactivation of catalysts, in general
    • 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

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  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
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Abstract

본 발명은 폐가스를 수분포화기(1)을 통과시켜 촉매반응에 충분한 수분을 공급하고; 적정 촉매반응 온도로 가열하기 위하여 열교환기(2)로 도입시키고; 높은 활성을 갖는 촉매를 충진시킨 산화반응기(3)를 통과시켜 일산화탄소를 제거하고; 일산화탄소가 제거된 페가스를 벤크스크리버(4)에 도입하여 폐가스 중에 포함된 불순물을 제거하는; 단계로 이루어지는 유기물 산화공정중 생성되는 폐가스의 처리방법 및 장치에 관한 것이다. 상기 산화반응기(3)에 충진되는 촉매는 팔라듐과 구리에 염소이온과 질소이온을 배위시킨 것으로 팔라듐과 구리는 활성탄 담체를 포함한 촉매전체 무게를 기준으로 각각 0.1~20중량% 및 1.0~30중량%의 양으로 함유되며, 염소이온 대 질산이온의 비율은 1:0.1 내지 1:20이다. 본 발명의 폐가스 처리방법은 일산화탄소를 대량으로 제거할 수 있고, 상기 촉매는 낮은 온도에서도 활성이 높으며 재생하여 장기간 사용할 수도 있으므로 경제적이고 메틸브로마이드의 산화에 의해 생성되는 브롬화수소에 의한 부식 문제를 해결할 수 있는 발명의 효과를 가진다.The present invention passes the waste gas through the water saturator (1) to supply sufficient moisture for the catalytic reaction; Introduced into a heat exchanger (2) to heat to an appropriate catalysis temperature; Passing through an oxidation reactor (3) packed with a catalyst having a high activity to remove carbon monoxide; Introducing a waste gas from which carbon monoxide has been removed into the bensk scrubber 4 to remove impurities contained in the waste gas; The present invention relates to a method and apparatus for treating waste gas generated during an organic material oxidation process. The catalyst charged in the oxidation reactor (3) is a coordination of chlorine ions and nitrogen ions to palladium and copper, palladium and copper, respectively 0.1 to 20% by weight and 1.0 to 30% by weight based on the total weight of the catalyst including the activated carbon carrier It is contained in an amount of chlorine ion to nitrate ion ratio of 1: 0.1 to 1:20. The waste gas treatment method of the present invention can remove a large amount of carbon monoxide, and the catalyst has high activity even at low temperatures and can be regenerated and used for a long time, so it is economical and can solve the problem of corrosion by hydrogen bromide generated by oxidation of methyl bromide. Which has the effect of the invention.

Description

유기물 산화공정에서 생성되는 폐가스의 처리방법 및 장치Waste gas treatment method and apparatus generated in organic matter oxidation process

[발명의 분야][Field of Invention]

본 발명은 유기물 산화공정에서 생성되는 폐가스 처리방법 및 장치에 관한 것이다. 보다 구체적으로 본 발명은 벤젠 카르복실산과 같은 유기물의 제조공정에 생성되는 폐가스로부터 일산화탄소 및 기타 불순물을 제거하는 방법 및 장치에 관한 것이다.The present invention relates to a waste gas treatment method and apparatus generated in an organic material oxidation process. More specifically, the present invention relates to a method and apparatus for removing carbon monoxide and other impurities from waste gases generated in the manufacturing process of organics such as benzene carboxylic acid.

[발명의 배경][Background of invention]

벤젠 카르복실산과 같은 유기물의 산화공정에 있어서 부산물로서 생성되는 폐가스에는 환경오염물질로서 법적 규제대상이 되고 있는 일산화탄소가 다량 포함되어 있다. 특히 고순도 테레프탈산(terephthalic acid)의 제조공정에서 이러한 문제가 심각하게 대두되고 있다.The waste gas produced as a by-product in the oxidation process of organic substances such as benzene carboxylic acid contains a large amount of carbon monoxide, which is legally regulated as an environmental pollutant. In particular, this problem is seriously encountered in the manufacturing process of high purity terephthalic acid (terephthalic acid).

일반적으로 오염물질을 제거하는 방법으로는 그 농도에 따라 고농도일 경우에는 촉매를 이용하지 않는 연소반응과 저농도의 경우에는 촉매를 활용한 산화반응이 이용되고 있다. 폐가스에 포함되어 있는 일산화탄소는 대부분 그 농도가 낮기때문에 촉매를 이용한 산화공정이 경제적이다. 촉매를 이용한 산화공정도 고온 산화공정과 저온 산화공정이 있으며, 현재까지 상업화된 촉매공정은 고온 촉매공정이다.In general, as a method of removing contaminants, a combustion reaction using no catalyst at high concentrations and an oxidation reaction using catalysts at low concentrations are used depending on the concentration. Since most of the carbon monoxide contained in the waste gas is low in concentration, an oxidation process using a catalyst is economical. The oxidation process using a catalyst also includes a high temperature oxidation process and a low temperature oxidation process. The catalyst process commercialized so far is a high temperature catalyst process.

벤젠 카르복실산 제조공정상 생성되는 폐가스에 포함된 일산화탄소를 제거하기 위한 상업화된 산화공정으로는 백금등의 금속 촉매를 이용한 산화공정이 가장 대표적으로 이용되고 있다. 이 공정은 촉매에 의한 산화반응 공정과 염기용액을 이용하는 벤트 스크러버(vent scrubber) 공정으로 이루어져 있다. 상기 산화반응 공정은 300℃ 이상의 고온으로 유지시켜야만 촉매의 활성이 유지되기 때문에 폐가스의 온도를 상기 온도까지 올려주는 부대장치가 필요하게 된다. 이로 인하여 설비가 복잡해지고 투자비가 상승하게 되며 운전비용도 증가하게 되는 문제점이 있다.As a commercialized oxidation process for removing carbon monoxide contained in the waste gas generated in the benzene carboxylic acid manufacturing process, an oxidation process using a metal catalyst such as platinum is most typically used. This process consists of a catalytic oxidation process and a vent scrubber process using a base solution. Since the oxidation process is maintained only at a high temperature of 300 ° C. or higher to maintain the activity of the catalyst, an auxiliary device is required to raise the temperature of the waste gas to the above temperature. Due to this, there is a problem in that the equipment becomes complicated, the investment cost increases, and the operating cost also increases.

저온 조건하에서도 일산화탄소 제거를 위한 촉매활성이 유지되는 촉매로서 염화팔라듐(PdCl2)과 염화구리(CuClb2)를 조합하여 사용하는 방법이 알려져 있지만 활성시간이 짧고 대량처리가 불가능하여 상업화되지 못하고 있으며 산성 용매에 의한 장치의 부식이 심하며 특히 촉매의 재생이 어려운 단점이 있다.It is known to use a combination of palladium chloride (PdCl 2 ) and copper chloride (CuClb 2 ) as a catalyst that maintains catalytic activity for removing carbon monoxide even under low temperature conditions. The corrosion of the device by acidic solvents is severe and in particular, the regeneration of the catalyst is difficult.

본 발명에서는 상기와 같은 문제점을 해결하기 위하여, 상온에 가까운 낮은 온도에서도 높은 활성을 갖는 촉매를 이용함으로써, 유기물의 산화에 의해 생성되는 폐가스를 고온까지 예열하지 않고도 폐가스로부터 일산화탄소를 제거할 수 있는 폐가스 처리방법 및 장치를 개발하기에 이른 것이다.In the present invention, in order to solve the above problems, by using a catalyst having a high activity even at a low temperature close to room temperature, waste gas that can remove carbon monoxide from the waste gas without preheating the waste gas generated by the oxidation of organic matter to a high temperature It is early to develop the treatment method and apparatus.

본 발명의 목적은 저온에서도 촉매반응활성을 가지는 일산화탄소를 제거하기 위한 촉매를 제공하기 위한 것이다.An object of the present invention is to provide a catalyst for removing carbon monoxide having catalytic activity even at low temperatures.

본 발명의 다른 목적은 일산화탄소의 산화공정을 거친 후 재생가능한 일산화탄소를 제거하기 위한 촉매를 제공하기 위한 것이다.Another object of the present invention is to provide a catalyst for removing renewable carbon monoxide after the oxidation process of carbon monoxide.

본 발명의 또 다른 목적은 저온 촉매산화 공정을 이용하여 고온 예열을 위한 부대장치를 필요로 하지 않는 폐가스로부터 일산화탄소를 제거하는 장치를 제공하기 위한 것이다.It is still another object of the present invention to provide an apparatus for removing carbon monoxide from waste gas which does not require an auxiliary device for high temperature preheating using a low temperature catalytic oxidation process.

본 발명의 또 다른 목적은 경제적이고 대량 처리가 가능하여 상업화하기에 적합한 폐가스 처리방법을 제공하기 위한 것이다.It is another object of the present invention to provide a waste gas treatment method which is economical and capable of mass processing and suitable for commercialization.

본 발명의 상기 및 기타의 목적들은 하기 설명되는 본 발명에 의해 모두 달성될 수 있다.The above and other objects of the present invention can be achieved by the present invention described below.

이하 본 발명의 내용을 하기에 상세히 설명한다.Hereinafter, the content of the present invention will be described in detail.

제1도는 폐가스 처리 공정의 개략도이다.1 is a schematic diagram of a waste gas treatment process.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1 : 수분포화기 2 : 열교환기1: water saturator 2: heat exchanger

3 : 산화반응기 4 : 벤트스크러버3: oxidation reactor 4: vent scrubber

본 발명은 벤젠 카르복실산, 특히 고순도 테레프탈산의 제조공정중 생성되는 폐가스에 포함되어 있는 일산화탄소를 저온에서의 촉매반응을 통해 제거하기 위한 장치 및 방법에 관한 것이다. 하기에서는 제1도를 참고로 하여 본원발명의 폐가스 처리방법 및 장치를 설명한다.The present invention relates to an apparatus and a method for the removal of carbon monoxide contained in the waste gas generated during the production of benzene carboxylic acid, especially high purity terephthalic acid, by catalytic reaction at low temperature. The following describes the waste gas treatment method and apparatus of the present invention with reference to FIG.

벤젠 카르복실산 제조공정중 생성되는 폐가스는 수분포화기(1)의 하부로 도입하여 상단부로 배출된다. 이것은 폐가스에 함유되어 있는 일산화탄소와 촉매의 반응을 촉진시키기에 충분한 수분을 공급하기 위한 것이다. 원하는 수분 농도로 조절하기 위하여 수분포화기(1)의 상단으로 펌프를 사용하여 물을 공급하고 수분포화기(1)의 바닥에 고인 물은 다시 순환시켜서 재사용하고 부족한 경우에는 계속 물을 공급한다. 폐가스에 함유된 수분의 농도는 0.1 내지 15 중량%인 것이 바람직하다.Waste gas generated during the benzene carboxylic acid manufacturing process is introduced into the lower portion of the water saturator 1 and discharged to the upper end portion. This is to supply sufficient moisture to accelerate the reaction of the catalyst with carbon monoxide contained in the waste gas. In order to control the desired moisture concentration, water is supplied to the top of the water saturator 1 by using a pump, and water accumulated at the bottom of the water saturator 1 is circulated again and reused. The concentration of water contained in the waste gas is preferably 0.1 to 15% by weight.

수분을 함유한 폐가스는 수분포화기(1)의 상단부로부터 흘러나와 적정 촉매 반응온도로 가열되기 위하여 열교환기(2)로 도입된다. 본원발명에서는 폐가스의 온도를 약 40 내지 150℃ 정도로만 유지하여도 촉매의 활성을 유지시키기에 충분하다.Waste gas containing moisture flows out of the upper end of the water saturator 1 and is introduced into the heat exchanger 2 to be heated to an appropriate catalytic reaction temperature. In the present invention, maintaining the temperature of the waste gas at only about 40 to 150 ° C. is sufficient to maintain the activity of the catalyst.

상기 열교환기(2)에 의하여 가열된 폐가스는 촉매충진층을 중간부에 포함하고 있는 산화반응기(3)의 상부로 도입되어 촉매와 반응하여 일산화탄소가 제거된 다음 산화반응기의 하단으로 배출된다.The waste gas heated by the heat exchanger (2) is introduced into the upper portion of the oxidation reactor (3) including the catalyst packed bed in the middle portion and reacts with the catalyst to remove carbon monoxide and then discharged to the lower portion of the oxidation reactor.

산화반응기(3)에 충진된 촉매는 팔라듐과 구리에 염소이온과 질산이온을 배위시킨 화합물로서 염화팔라듐(PdCl2), 염화구리(CuCl2) 및 질산구리(Cu(NO3)2)의 활성이 높은 물질로 이루어진다. 상기 촉매는 활성탄(activated carbon)에 담지시켜 사용된다. 본 발명에 사용되는 촉매의 조성은 활성탄 담체를 포함한 촉매전체 무게를 기준으로 팔라듐이 0.1~20중량%이고 구리가 1.0~30중량%이며, 염소이온 대 질산이온의 비율이 1:0.1 내지 1:20인 것이 바람직하다.The catalyst charged to the oxidation reactor (3) is palladium chloride (PdCl 2), copper chloride (CuCl 2) and copper nitrate (Cu (NO 3) 2) the activity of a compound which coordinates the chloride ion and nitrate ion in the palladium and copper It is made of high material. The catalyst is used by being supported on activated carbon. The composition of the catalyst used in the present invention is 0.1 to 20% by weight of palladium, 1.0 to 30% by weight of copper based on the total weight of the catalyst including the activated carbon carrier, and the ratio of chlorine to nitrate is 1: 0.1 to 1: It is preferable that it is 20.

상기 산화반응기(3)에서 촉매와 반응하여 일산화탄소가 제거된 폐가스는 다시 열교환기(2)로 재순환된 다음 벤트스크러버(4)의 도입된다. 이때 열교환기(2)에서는 재순환된 폐가스가 수분포화기(1)로부터 도입되는 폐가스를 가열하는 역할을 한다. 상기 벤트스크러버(4)에 도입된 일산화탄소가 제거된 폐가스에는 산화반응기(3)의 촉매 성분, 담지체인 활성탄 성분 및 벤젠 카르복실산 제조 과정에서의 유기 불순물 등이 포함되어, 이후의 공정에 나쁜 영향을 미칠 수 있다.The waste gas from which carbon monoxide has been removed by reacting with the catalyst in the oxidation reactor 3 is recycled back to the heat exchanger 2 and then the vent scrubber 4 is introduced. At this time, the heat exchanger (2) serves to heat the waste gas recycled waste gas is introduced from the water saturator (1). The waste gas from which carbon monoxide introduced into the vent scrubber 4 is removed includes a catalyst component of the oxidation reactor 3, an activated carbon component as a carrier, and organic impurities in the process of producing benzene carboxylic acid. Can have

상기의 불순물을 함유한 폐가스는 벤트스크러버(4)의 하단으로 공급되고 상단에서 수산화나트륨 용액을 공급하여 불순물을 제거한다. 불순물을 함유한 수산화나트륨 용액의 일부는 바닥으로 빼내고 나머지는 계속해서 순환시키며, 소량의 수산화나트륨 용액을 지속적으로 상기 벤트스크러버(4)에 공급한다. 일산화탄소와 불순물이 모두 제거되어 정제된 폐가스는 상기 벤트스크러버(4)의 최상단으로 최종 배출된다.The waste gas containing the above impurity is supplied to the bottom of the vent scrubber 4 and the sodium hydroxide solution is supplied from the top to remove impurities. A portion of the sodium hydroxide solution containing impurities is drawn off to the bottom and the remainder is circulated continuously, and a small amount of sodium hydroxide solution is continuously supplied to the vent scrubber 4. The waste gas purified by removing both carbon monoxide and impurities is finally discharged to the top of the vent scrubber 4.

본 발명의 유기물 산화공정중 생성되는 일산화탄소를 제거하기 위한 장치 및 방법은 저온에서도 촉매반응활성을 가지는 촉매를 사용함으로써 고온 예열을 위한 부대장치를 필요로 하지 않고, 상기 사용한 촉매는 일산화탄소의 산화공정을 거친 후 재생가능하므로 경제적이고 대량처리가 가능하여 상업화하기에 적당하다. 본 발명의 촉매는 약 40 내지 150℃의 온도 범위에서 충분한 활성을 나타내었으며 6개월 이상 사용하여도 일산화탄소 제거율이 90% 이상으로 우수한 발명의 효과를 가진다.The apparatus and method for removing carbon monoxide generated during the organic material oxidation process of the present invention do not require an auxiliary device for high temperature preheating by using a catalyst having a catalytic reaction activity even at a low temperature. Recyclable after coarse, economical and mass processing is suitable for commercialization. The catalyst of the present invention exhibited sufficient activity in the temperature range of about 40 to 150 ° C., and the carbon monoxide removal rate was 90% or more even when used for 6 months or more, thereby having an excellent effect of the present invention.

본 발명의 단순한 변형 내지 변경은 이 분야의 통상의 지식을 가진 자에 의하여 용이하게 실시될 수 있으며, 이러한 변형이나 변경은 모두 본 발명의 영역에 포함되는 것으로 볼 수 있다.Simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be seen to be included in the scope of the present invention.

Claims (7)

PdCl2, CuCl2및 Cu(NO3)2로 이루어진 활성탄에 담지된 촉매로서, Pd와 Cu는 활성탄 담체를 포함한 촉매전체 무게를 기준으로 각각 0.1~20중량% 및 1.0~30중량%의 양으로 함유되고,[염소이온]:[질산이온]=1:0.1 내지 1:20인 것을 특징으로 하는 유기물 산화공정중 생성되는 폐가스로부터 일산화탄소를 제거하기 위한 촉매.A catalyst supported on activated carbon consisting of PdCl 2 , CuCl 2 and Cu (NO 3 ) 2 , wherein Pd and Cu are present in amounts of 0.1-20% by weight and 1.0-30% by weight, respectively, based on the total weight of the catalyst including the activated carbon carrier. A catalyst for removing carbon monoxide from the waste gas generated during the oxidation process of organic matter, wherein the chlorine ion: [nitrate ion] = 1: 0.1 to 1:20. 폐가스를 수분포화기(1)의 하부로 도입시키고 수분농도를 적절히 유지하기 위하여 수분포화기(1)의 상단부로 물을 공급하고; 상기 수분을 함유한 폐가스를 상기 수분포화기(1)의 상단부로부터 열교환기(2)로 도입시키고; 상기 열교환기(2)에서 촉매활성온도로 가열된 폐가스를 제1항의 촉매를 충진시킨 산화반응기(3)에 도입하여 일산화탄소를 제거하고; 상기 일산화탄소가 제거된 폐가스를 열교환기(2)로 재순환시킨 다음 벤트스크러버(4)의 하부로 도입시키고 그 상부로부터 수산화나트륨 용액을 공급하여 폐가스에 포함된 불순물을 제거하는; 단계로 이루어지는 것을 특징으로 하는 유기물 산화공정중 생성되는 폐가스Introducing waste gas into the lower portion of the water saturator 1 and supplying water to the upper end of the water saturator 1 in order to maintain the water concentration properly; Introducing waste water containing water into the heat exchanger (2) from an upper end of the water saturator (1); Introducing waste gas heated to the catalytic activity temperature in the heat exchanger (2) into an oxidation reactor (3) filled with the catalyst of claim 1 to remove carbon monoxide; Recycling the carbon monoxide from the waste gas to a heat exchanger (2) and then introducing it into the bottom of the vent scrubber (4) and supplying a sodium hydroxide solution from the top to remove impurities contained in the waste gas; Waste gas generated during the organic material oxidation process, characterized in that the step consists of 제2항에 있어서, 상기 수분포화기(1) 내의 수분농도는 0.1 내지 15중량%인것을 특징으로 하는 유기물 산화공정중 생성되는 폐가스의 처리방법.The method of claim 2, wherein the water concentration in the water saturator (1) is 0.1 to 15% by weight. 제2항에 있어서, 상기 산화반응기(3)의 내부 촉매활성온도는 40 내지 150℃인 것을 특징으로 하는 유기물 산화공정중 생성되는 폐가스의 처리방법.The method of treating waste gas generated during the oxidation process of organic matter according to claim 2, wherein the internal catalytic activity temperature of the oxidation reactor (3) is 40 to 150 ° C. 제2항에 있어서, 상기 산화반응기(3)의 촉매를 회수하여 염산(HCl)과 질산(HNO3)과의 함량을 1:0.1 내지 1:10으로 첨가하여 재생시키는 것을 특징으로 하는 유기물 산화공정중 생성되는 폐가스의 처리방법.The organic material oxidation process according to claim 2, wherein the catalyst of the oxidation reactor (3) is recovered and regenerated by addition of 1: 0.1 to 1:10 of hydrochloric acid (HCl) and nitric acid (HNO 3 ). Waste gas treatment method 폐가스에 촉매활성에 적합한 수분농도를 제공하기 위하여 상단부로부터 물이 공급되는 수분포화기(1); 폐가스를 촉매활성온도로 가열시키는 열교환기(2); 제1항에 따른 촉매의 충진층을 중간부에 포함하는 산화반응기(3); 및 수산화나트륨이 공급되는 벤트스크러버(4); 로 구성되는 것을 특징으로 하는 유기물 산화공정중 생성되는 폐가스 처리장치.A water saturator (1) to which water is supplied from the upper end to provide the waste gas with a suitable concentration of water for catalytic activity; A heat exchanger 2 for heating the waste gas to the catalytically active temperature; An oxidation reactor (3) comprising a packed bed of a catalyst according to claim 1 in an intermediate portion; And a vent scrubber 4 to which sodium hydroxide is supplied; Waste gas treatment apparatus generated during the organic material oxidation process, characterized in that consisting of. 제6항에 있어서, 상기 수분포화기(1) 내의 수분농도는 0.1 내지 15중량%인 것을 특징으로 하는 유기물 산화공정중 생성되는 폐가스 처리장치.The waste gas treatment apparatus of claim 6, wherein the water concentration in the water saturator (1) is 0.1 to 15% by weight.
KR1019980023419A 1998-06-22 1998-06-22 Waste gas treatment method and apparatus generated in organic matter oxidation process KR100279922B1 (en)

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