[논문]복합대기오염 저감 시스템을 위한 오존 고속산화 기반 고도산화공정

엄성현; 홍기훈; 황상연

doi:10.14478/ace.2021.1035

복합대기오염 저감 시스템을 위한 오존 고속산화 기반 고도산화공정
An Ozone-based Advanced Oxidation Process for an Integrated Air Pollution Control System 원문보기

공업화학 = Applied chemistry for engineering, v.32 no.3, 2021년, pp.237 - 242

엄성현 (고등기술연구원 플랜트공정개발센터) , 홍기훈 (고등기술연구원 플랜트공정개발센터) , 황상연 (고등기술연구원 플랜트공정개발센터)

초록
AI-Helper

미세먼지와 함께 질소산화물, 황산화물, 휘발성 유기화합물, 암모니아 비롯한 유발물질에 대한 동시 저감기술은 엄격해지는 환경규제와 실질적인 저감효과 제고를 위해 꾸준히 주목받아 왔다. 오존산화에 의한 비수용성 질소산화물 고속산화 공정은 전통적으로 적용되고 있는 선택적 촉매환원 공정에 비해 공간절약형 시스템 적용을 가능하게 할 뿐만 아니라 운영비용 절감 측면에서 매우 효과적인 방법으로 평가되고 있으며 황산화물을 비롯한 산성가스와 동시 저감이 가능한 공정 구현이 가능하다는 장점까지 있다. 본 논문에서는 오존 고속산화 공정에 대한 기술 이슈 및 개발 동향을 소개하며 향후 산업적 이용 확대를 위한 개발 방향에 대해서 고찰하고자 한다.

Abstract ▼ AI-Helper

Simultaneous removal technologies of multi-pollutants such as particulate matters (PMs), NOx, SOx, VOCs and ammonia have received consistent attention due to the enhancement of pollutant abatement efficiency in addition to the stringent environmental regulation and emission standard. Pretreatment of insoluble NO by an ozone oxidation can be considered to be more effective route for saving space occupation as well as operation cost in comparison with that of traditional selective catalytic reduction (SCR) process. Moreover the primary advantage of ozone oxidation process is that the simultaneous removal with acidic gas including SOx is also available. Herein, we highlight recent studies of multi-pollutant abatement via ozone oxidation process and the promising research topics for better application in industrial sectors.

주제어

표/그림 (8)

그림 Figure 1. Schematic diagram for multi-pollutants removal by (a) typical technical route and (b) ozone oxidation process[4].
표 Table 1. Advantages and Disadvantages of Several DeNOx Technologies
그림 Figure 2. (a) The decomposition of ozone at increasing gas temperature. (b) NOx reduction rate at various temperature.
표 Table 2. Basic Properties of Nitrogen Oxides[4,7]
그림 Figure 3. (a) The proposed process diagram for the simultaneous removal of NO and SO₂ from marine exhaust gas by ozone injection combined with in-situ wet scrubbing oxidant solution. (b) The effects of wet scrubbing on outlet O₃ concentrations with inlet flue gas temperature of 250 ℃[16].
그림 Figure 4. Air pollution control procedures in semiconductor fabrication processes of TSMC[23].
그림 Figure 5. (a) Photograph and (b) schematic design of 5 CMM horizontal-type dual wet electrostatic precipitator (WESP) system.
그림 Figure 6. Schematic design of (a) tubular-type ozone generator system, (b) more detailed structure of tubular ozone generator, and (c) discharge tubes and high voltage electrode in the tubular ozone generator, respectively.

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