KR100569410B1 - VOC treatment apparatus using light catalytic reactor - Google Patents
VOC treatment apparatus using light catalytic reactor Download PDFInfo
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- KR100569410B1 KR100569410B1 KR1020040024985A KR20040024985A KR100569410B1 KR 100569410 B1 KR100569410 B1 KR 100569410B1 KR 1020040024985 A KR1020040024985 A KR 1020040024985A KR 20040024985 A KR20040024985 A KR 20040024985A KR 100569410 B1 KR100569410 B1 KR 100569410B1
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- 238000011282 treatment Methods 0.000 title abstract description 21
- 230000003197 catalytic effect Effects 0.000 title description 2
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 34
- 239000011521 glass Substances 0.000 claims abstract description 28
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 12
- 239000011941 photocatalyst Substances 0.000 claims abstract description 11
- 230000001699 photocatalysis Effects 0.000 claims abstract description 9
- 238000013032 photocatalytic reaction Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 18
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 230000001939 inductive effect Effects 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 4
- 239000000809 air pollutant Substances 0.000 abstract description 3
- 231100001243 air pollutant Toxicity 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
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- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 208000002330 Congenital Heart Defects Diseases 0.000 description 1
- 208000022540 Consciousness disease Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 208000001647 Renal Insufficiency Diseases 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003394 haemopoietic effect Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000005831 heart abnormality Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 201000006370 kidney failure Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultra-violet radiation
- A61L9/205—Ultra-violet radiation using a photocatalyst or photosensitiser
-
- 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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
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- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
Abstract
본 발명은 TiO2가 코팅처리되어 있는 유리코일반응기와 UV램프로 이루어진 광촉매반응기를 이용하여 휘발성유기화합물을 처리하는 장치에 관한 것으로서, 광촉매반응기를 이용하여 휘발성유기화합물을 처리하는 광촉매시스템을 대기정화장치에 도입함으로써, 기존의 비효율적인 처리방법에서 벗어나 경제적이고 고효율의 대기오염원 정화기술로 활용할 수 있으며, 난분해성의 휘발성유기화합물을 1차적으로 처리하여 최종처리에서의 오염부하를 줄일 수 있는 등 앞으로 강화되고 있는 휘발성유기화합물 총량규제에 적극적으로 대처할 수 있는 처리장치를 제공한다. The present invention relates to an apparatus for treating volatile organic compounds using a photocoil reactor comprising a TiO 2 -coated glass coil reactor and a UV lamp, and an atmospheric purification of a photocatalyst system for treating volatile organic compounds using a photocatalytic reactor. It can be used as an economical and highly efficient air pollutant purification technology by eliminating the existing inefficient treatment method, and by reducing the pollutant load in the final treatment by treating hardly decomposable volatile organic compounds first. It provides a treatment device that can actively cope with the tightening regulation of total amount of volatile organic compounds.
본 발명에서 제공하는 처리장치는 휘발성유기화합물을 포함하고 있는 오염공기의 유입과 배출이 가능한 동시에 나선형의 흐름을 유도할 수 있으며 표면에는 광촉매가 코팅되어 있는 유리코일반응기와, 상기 유리코일반응기의 일측에 구비되며 광촉매반응을 위한 자외선을 제공하는 UV램프를 포함하여 구성되는 것을 특징으로 한다.The treatment apparatus provided in the present invention is capable of inducing and discharging contaminated air containing volatile organic compounds and at the same time inducing a spiral flow, and a glass coil reactor having a photocatalyst coated on its surface, and one side of the glass coil reactor. It is provided in and characterized in that it comprises a UV lamp for providing ultraviolet light for the photocatalytic reaction.
도장부스, 휘발성유기화합물, 광촉매반응기, UV램프Coating Booth, Volatile Organic Compound, Photocatalytic Reactor, UV Lamp
Description
도 1은 본 발명에 따른 휘발성유기화합물 처리장치를 보여주는 사시도1 is a perspective view showing a volatile organic compound processing apparatus according to the present invention
도 2는 본 발명에 따른 휘발성유기화합물 처리장치의 설치위치를 보여주는 개략도Figure 2 is a schematic diagram showing the installation position of the volatile organic compound processing apparatus according to the present invention
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
10 : 유리코일반응기 20 : UV램프10
30 : 건조로 40 : 처리장치30: drying furnace 40: processing apparatus
50 : 환기덕트50: ventilation duct
본 발명은 TiO2가 코팅처리되어 있는 유리코일반응기와 UV램프로 이루어진 광촉매반응기를 이용하여 휘발성유기화합물을 처리하는 장치에 관한 것으로서, 특 히 오염원과 반응시스템 간의 반응거리가 짧아 처리효율을 높일 수 있으며, 제작이 용이하고 제작비용이 저렴하여 경제적인 측면에서도 유리한 광촉매반응기를 이용한 휘발성유기화합물 처리장치에 관한 것이다. The present invention relates to a device for treating volatile organic compounds using a TiO 2 -coated glass coil reactor and a UV catalyst photocatalytic reactor. In particular, the reaction distance between the pollutant source and the reaction system is short, thereby improving treatment efficiency. In addition, the present invention relates to an apparatus for treating volatile organic compounds using a photocatalytic reactor, which is easy to manufacture and low in manufacturing cost, which is advantageous in terms of economy.
일반적으로 대기오염의 주요 원인물질인 오존은 자동차 및 여러가지 연소시설에서 발생하는 질소산화물과 석유화학공장 및 유기용제를 사용하는 사업장에서 발생하는 휘발성유기화합물(Volatile Organic Compounds;VOC)이 태양광선 중의 자외선에 의하여 광화학반응이 일어날 때 주로 발생된다. In general, ozone, a major source of air pollution, is composed of nitrogen oxides from automobiles and various combustion facilities, volatile organic compounds (VOCs) generated from petrochemical plants and workplaces using organic solvents. This is mainly caused by photochemical reactions.
이러한 오존은 조혈기능장애, 발암성, 의식장애, 두통, 전신경련, 신장장애, 심장이상 등을 유발하는 등 인체에 직접적으로 유해하기 때문에 최근 "VOC의 규제"에 관한 규정을 신설하여 VOC배출시설에 대한 규제를 강화하고 있는 추세이다.Since ozone is directly harmful to the human body such as hematopoietic dysfunction, carcinogenicity, consciousness disorder, headache, systemic cramps, renal failure, heart abnormalities, etc. Increasingly, regulations are being tightened.
특히, 자동차 도장부스에서 발생되는 휘발성유기화합물은 대부분 대기 중에 방출되기 때문에 이에 대한 대책마련이 시급한 실정이다. In particular, since most of the volatile organic compounds generated in the automotive booth are emitted to the atmosphere, it is urgent to prepare countermeasures.
현재 휘발성유기화합물의 처리를 위한 방법으로는 바이오필터법, 촉매산화법, 연소법, 습식세정법, 활성탄 흡착을 이용한 방법 등이 있다.Currently, methods for treating volatile organic compounds include a biofilter method, a catalytic oxidation method, a combustion method, a wet cleaning method and a method using activated carbon adsorption.
특히, 도료를 사용하는 업체의 경우 휘발성유기화합물 저감을 위한 처리기술로는 주로 대기배출구에서 후처리하는 방법으로서 습식스크러버나 전기플라즈마 등을 이용하는 기술이 있다. Particularly, in the case of companies using paint, a treatment technique for reducing volatile organic compounds includes a technique using a wet scrubber or an electric plasma as a method of post-treatment at an air outlet.
즉, 휘발성유기화합물 중의 수용성부분을 물에 흡수시켜 저감하거나 플라즈마를 발생시켜 오염원을 저감하는 기술이다. That is, the water-soluble portion in the volatile organic compound is absorbed in water to reduce or generate a plasma to reduce the pollution source.
습식스크러버의 경우 휘발성유기화합물 중의 수용성부분은 물에 흡수되어 저 감되지만 그 이외의 부분들은 처리되지 않고 대기 중으로 방출되고 있는 실정이다.In the case of a wet scrubber, the water-soluble part of the volatile organic compound is absorbed and reduced by water, but other parts are released to the atmosphere without being treated.
위의 두가지 방법 모두 설비의 제작비용이 높을 뿐만 아니라 유지보수가 용이하지 않고, 처리효율이 낮아 대기환경기준을 만족시키지 못하고 있는 현실이며, 따라서 최근의 대기환경기준이 강화되면서 도료산업체에서의 휘발성유기화합물 처리방안의 마련이 시급하고, 경제성을 가지며 고도의 처리효율을 갖는 휘발성유기화합물 처리기술의 필요성이 요구되는 실정이다.Both of the above methods are not only high production cost but also easy maintenance and low processing efficiency, which is not satisfying the air quality standards. There is an urgent need for the preparation of compound treatment methods, the need for economical and highly efficient volatile organic compound treatment techniques.
따라서, 본 발명은 이와 같은 점을 감안하여 안출한 것으로서, 유리코일반응기와 UV램프로 이루어진 광촉매반응기를 이용하여 휘발성유기화합물을 처리하는 광촉매시스템을 대기정화장치에 도입함으로써, 기존의 비효율적인 처리방법에서 벗어나 경제적이고 고효율의 대기오염원 정화기술로 활용할 수 있으며, 난분해성의 휘발성유기화합물을 1차적으로 처리하여 최종처리에서의 오염부하를 줄일 수 있는 등 앞으로 강화되고 있는 휘발성유기화합물 총량규제에 적극적으로 대처할 수 있는 광촉매반응기를 이용한 휘발성유기화합물 처리장치를 제공하는데 그 목적이 있다.
Accordingly, the present invention has been made in view of the above, and by introducing a photocatalyst system for treating volatile organic compounds using a photocatalytic reactor consisting of a glass coil reactor and a UV lamp, an existing inefficient treatment method It can be utilized as an economical and highly efficient air pollutant purification technology, and actively controls the total amount of volatile organic compounds that are being strengthened in the future, such as reducing the pollutant load in the final treatment by treating volatile organic compounds that are difficult to decompose first. It is an object of the present invention to provide an apparatus for treating volatile organic compounds using a photocatalytic reactor that can cope.
상기와 같은 목적을 달성하기 위하여 본 발명은 휘발성유기화합물을 포함하고 있는 오염공기의 유입과 배출이 가능한 동시에 나선형의 흐름을 유도할 수 있으며 표면에는 광촉매가 코팅되어 있는 유리코일반응기와, 상기 유리코일반응기의 일 측에 구비되며 광촉매반응을 위한 자외선을 제공하는 UV램프를 포함하여 구성되는 것을 특징으로 한다.In order to achieve the above object, the present invention is capable of inducing and discharging contaminated air containing volatile organic compounds and at the same time inducing a spiral flow, and a glass coil reactor having a photocatalyst coated on its surface, and the glass coil. It is provided on one side of the reactor is characterized in that it comprises a UV lamp for providing ultraviolet light for the photocatalytic reaction.
또한, 상기 광촉매는 TiO2, CdS, ZnO 중의 하나가 사용되는 것을 특징으로 한다. In addition, the photocatalyst is characterized in that one of TiO 2 , CdS, ZnO is used.
또한, 상기 UV램프는 유리코일반응기의 중심축선상을 따라 나란하게 배치되는 것을 특징으로 한다. In addition, the UV lamp is characterized in that arranged side by side along the central axis of the glass coil reactor.
또한, 상기 유리코일반응기는 도장부스 내의 환기덕트 유입부에 설치되어 도장부스를 빠져나온 오염공기를 전량 처리할 수 있도록 된 것을 특징으로 한다.In addition, the glass coil reactor is installed in the ventilation duct inlet in the coating booth is characterized in that it is possible to process the entire amount of contaminated air exiting the coating booth.
이하, 본 발명의 바람직한 실시예를 첨부한 도면에 따라 상세히 설명하면 다음과 같다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
휘발성유기화합물은 주로 도장공정 중의 도장부스 내 건조로에서 발생하고 있으며 환기덕트를 통해 대기로 방출된다. Volatile organic compounds are mainly generated in the drying furnace in the coating booth during the painting process and are released into the atmosphere through the ventilation duct.
이에 따라 배출통로인 덕트 입구부분에 본 발명의 처리장치, 즉 TiO2, CdS, ZnO 등, 바람직하게는 TiO2가 코팅된 유리코일반응기 시스템을 도입하고, 코일 내의 광원으로서 UV램프를 설치하여 코일 내로 유입되는 휘발성유기화합물 함유 오염공기를 촉매반응에 의해 생성된 라디칼을 통해 산화 분해시켜 처리할 수 있다. Accordingly, the treatment apparatus of the present invention, ie, TiO 2 , CdS, ZnO, etc., preferably a TiO 2 coated glass coil reactor system is introduced to the duct inlet, the discharge passage, and a UV lamp is installed as a light source in the coil. The contaminated air containing volatile organic compounds introduced into can be treated by oxidative decomposition through radicals generated by the catalytic reaction.
예를 들면, 도 2에 도시한 바와 같이, 도장부스 내 건조로(30)의 상부에 설치되어 있는 환기덕트 내에 처리장치(40)를 설치하여 그 내부에서 발생되는 휘발성유기화합물 함유 오염공기를 처리할 수 있다. For example, as shown in FIG. 2, the
본 발명의 처리장치(40)는 크게 오염공기가 진행하는 유리코일반응기(10)와 자외선 조사를 위한 UV램프(20)로 구성된다. The
도 1에 도시한 바와 같이, 상기 유리코일반응기(10)는 오염공기의 유입을 위한 한쪽의 입구와 배출을 위한 반대쪽의 출구가 구비되어 있는 코일형구조의 반응기로서, 입구를 통해 유입된 오염공기는 나선형의 흐름을 유지하면서 진행되고 최종 출구를 통해 빠져나갈 수 있게 된다. As shown in FIG. 1, the
위와 같은 코일형구조는 앞뒤의 짧은 길이에도 불구하고 오염공기가 흐를 수 있는 전체적인 경로를 길게 확보할 수 있기 때문에 촉매반응구간을 충분히 확보할 수 있는 잇점이 있다.The coil-like structure as described above has the advantage of ensuring a sufficient catalytic reaction section because the entire path through which polluted air can flow can be secured despite the short length of the front and rear.
도장부스 내에 설치된 환기덕트(50) 유입부에 광촉매, 예를 들면 TiO2로 코팅처리된 유리코일반응기(10)와 그 일측, 바람직하게는 반응기 중심축선상을 따라 나란하게 배치되는 UV광원으로서 UV램프(20)가 구비된다. UV as a UV light source disposed side by side with the
상기 유리코일반응기(10)는 덕트의 벽면과 지지대(미도시)에 의해 고정될 수 있으며, 상기 UV램프(20)는 전원을 공급받기 위한 배선을 갖는다.The
따라서, 광촉매 반응이 일어나기 위한 구비조건(광원+TiO2)이 갖추어지게 된다. Therefore, the prerequisite (light source + TiO 2 ) for the photocatalytic reaction to occur is satisfied.
환기덕트(50)의 유입구 부분은 포집된 오염공기가 유리코일반응기(10) 속으로 유동할 수 있도록 연결되어 있으며, 오염공기는 유리코일반응기(10)를 통해 광촉매반응을 거친 후 빠져나가게 된다. The inlet portion of the
상기 유리코일반응기(10)에 대한 광촉매(TiO2) 코팅은 여러가지 방식에 의해 가능하지만 바람직하게는 Anatase형의 TiO2액에 담근 후 꺼내어 800℃ 정도의 고온 건조로에 넣어서 TiO2액이 유리코일 표면에 균일하고 얇게 코팅되도록 하는 것이 좋다. The photocatalyst (TiO 2 ) coating on the
다른 방법으로는 스프레이에 의한 방법으로서 스프레이로 TiO2액을 골고루 분사시킨 후 건조시키는 방법이 있다. Another method by spraying is to spray the TiO 2 liquid evenly with a spray and then to dry.
상기 유리코일반응기(10)의 직경이나 UV램프(20)의 용량은 실내의 공기유량에 적합하도록 설계하는 것이 바람직하다. The diameter of the
예를 들면, 유리코일반응기의 직경이 너무 좁을 경우 부하 등이 발생으로 공기흐름에 저항이 생기면서 공기의 유동이 원활히 이루어지지 않게 되고, 이로 인해 오염공기의 처리용량에도 문제가 생길 수 있으므로 실내의 공기유량을 고려하여 유리코일반응기의 직경을 적합하게 설계하는 것이 바람직하며, 필요에 따라서는 강제송풍수단을 구비하여 유리코일반응기 내의 공기흐름을 원활히 유도할 수 있도록 하는 것이 좋다.For example, if the diameter of the glass coil reactor is too narrow, a load or the like may occur, resulting in resistance to the air flow, and the air not flowing smoothly, which may cause problems in the processing capacity of the polluted air. In consideration of the air flow rate, it is preferable to design the diameter of the glass coil reactor appropriately, and if necessary, it is preferable to include a forced blowing means to smoothly guide the air flow in the glass coil reactor.
본 발명에서 제공하는 처리장치의 경우 유리코일반응기(10)과 UV램프(20)가 근접 배치됨에 따라 촉매반응속도를 최대한 높일 수 있다. In the case of the treatment apparatus provided by the present invention, as the
예를 들면, 유리코일반응기(10)의 내경과 그 속에 배치되는 UV램프(20)의 외경을 유사한 크기, 예를 들면 1∼2mm 정도의 간격을 유지할 수 있는 정도의 크기를 갖도록 함으로써 코일 속을 흐르는 오염공기에 대한 촉매반응속도를 최대한 높일 수 있게 된다. For example, the inner diameter of the
따라서, 유리코일반응기 속을 유동하는 오염공기는 광촉매반응을 통해 생성된 OH 라디칼이나 슈퍼옥사이드 라디칼에 의한 산화반응을 거쳐 정화된 후 외부로 빠져나가게 된다. Therefore, the polluted air flowing in the glass coil reactor is purged through an oxidation reaction by OH radicals or superoxide radicals generated through the photocatalytic reaction and then exits to the outside.
여기서, 광촉매반응의 원리를 살펴보면, 이산화티타늄(TiO2) 광촉매는 n형 반도체로서 자외선(40nm)을 받으면 전자, 전공대가 형성되어 강한 산화력을 가진 하이드록실 라디칼(OH)과 슈퍼옥사이드(O2 _)를 생성한다. Here, looking at the principle of the photocatalytic reaction, the titanium dioxide (TiO 2 ) photocatalyst is an n-type semiconductor, when the ultraviolet (40nm) is subjected to ultraviolet (40nm), electrons, major bands are formed, the hydroxyl radical (OH) and superoxide (O 2 _ )
이 하이드록실 라디칼과 슈퍼옥사이드가 유기화합물을 산화 분해시켜 물과 탄산가스로 변화시킨다. These hydroxyl radicals and superoxides oxidize and decompose organic compounds into water and carbon dioxide.
이러한 원리로 공기 중 오염물질을 산화 분해시켜 무해한 물과 탄산가스로 변화시키고 오염물질인 유기화합물을 분해시키게 된다. This principle oxidizes and decomposes pollutants in the air to harmless water and carbon dioxide, and decomposes organic compounds.
이상에서와 같이 본 발명의 휘발성유기화합물 처리장치는 다음과 같은 효과를 제공한다. As described above, the volatile organic compound processing apparatus of the present invention provides the following effects.
1) 휘발성유기화합물 처리기술로서 학문적인 연구에서나 실생활에서 널리 사용되고 있는 광촉매시스템을 대기정화장치에 도입함으로써 기존의 비효율적인 처리방법에서 벗어나 경제적이고 고효율의 대기오염원 정화기술로 활용할 수 있다. 1) By introducing photocatalyst system which is widely used in academic research or real life as a volatile organic compound treatment technology to the air purification device, it can be used as an economical and high efficiency air pollution purification technology, which is free from the existing inefficient treatment method.
2) 난분해성의 휘발성유기화합물 저감을 위한 1차적인 처리공법으로서의 활 용도를 기대할 수 있다. 2) It can be expected to be used as a primary treatment method for reducing hardly degradable volatile organic compounds.
즉, 1차적으로 덕트 입구에서 처리하여 줌으로써 최종처리에서의 오염부하를 줄여주는 역할을 할 수 있다. That is, by primarily treating at the duct inlet can play a role of reducing the contamination load in the final treatment.
3) 오염원과 반응시스템 간의 반응거리가 가까워 처리효율을 높일 수 있다.3) The reaction distance between the pollutant and the reaction system is close, which can increase the treatment efficiency.
4) 도료를 취급하는 도료업체나 자동차업계에서는 앞으로 강화되고 있는 휘발성유기화합물 총량규제에 적극 대응할 수 있는 기술로 이용할 수 있다.4) It can be used as a technology that can actively respond to the regulation of total amount of volatile organic compounds which is being tightened in the paint industry and automobile industry.
5) 저렴한 처리시스템으로 인해 영세산업체에서도 널리 이용할 수 있다.5) It can be widely used by small and medium sized companies due to the low cost processing system.
6) 광촉매처리기술은 휘발성유기화합물 뿐만 아니라 NOx, SOx, 악취물질 등 많은 대기오염원의 저감에도 효과적이므로 대기환경보전에 많은 도움을 줄 수 있다. 6) The photocatalytic treatment technology is effective in reducing many air pollutants such as NOx, SOx, and odorous substances as well as volatile organic compounds, which can help to preserve the air environment.
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| KR100708449B1 (en) * | 2006-09-26 | 2007-04-18 | (주)에코베이스 | Purification apparatus using titania coil |
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