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RISS 인기검색어
- 검색키워드
- 저자 : Vladimir Demidiouk (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Application of a Plasma-Catalytic System for Decomposition of Volatile Organic Compounds
Vladimir Demidiouk,Jae-Ou Chae,Dae-yup Lee,Seung-il Moon 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.III
The several methods of removing toxic gases such as VOC, NOx etc. are used in industry now. The many of them are using adsorption on the activated carbon or the catalytic decomposition. And only in last few years plasma impulse discharge is applied. But all these methods have both advantages and disadvantages. In this research, the main goal of investigation is increasing catalytic eciency with using pulsed plasma and the optimizing of plasma-catalytic hybrid system for the treatment of the harmful gases. In present work, the searching of the several metal oxides catalysts for the decomposition of VOC were introduced and investigated in the combination with a plasma reactor. Wire-cylinder type plasma reactor using pulsed power supply was used and several kinds of catalysts such as Pt/Al2O3, V2O5-MnO2/Al2O3, MnO2-NiO/Al2O3, NiO/Al2O3 and MnO2- CuO-NiO-cement were studied. Then it was found that plasma treatment signicantly increases the removal eect of catalysts. In the case of Pt/Al2O3, the induced plasma increased the removal eciency nearly to about 28 % in 245 C and nearly to 36 % in 210 C for butyl-acetate. Especially, no polymers were detected inside of the reactor. Also, the eect of a combined treatment is higher than the sum of individual steps. This synergy eect is partly due to the catalytic oxidation with ozone and other active particles produced in the discharge. The catalyst moves the process towards total oxidation. The by-products formed during the plasma treatment are oxidized to CO2 and the main disadvantage of plasma treatment of VOC could be successfully solved.
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디젤기관과 촉매코팅필터를 이용한 NOx와 Soot의 동시저감에 관한 연구
채재우(JaeOu Chae),박창하(Changha Park),문승일(Seungil Moon),Vladimir Demidiouk,이대엽(Daeyup Lee),정태균(Taegyun Jung) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_1
Recently, for the past ten years(1990-2000), the pollutant control of emitting exhaust gas for vehicles with internal engines has became more strict. The main harmful components of the pollutants in the exhaust gas of diesel engines are NOx, PM, HC and CO. Numerous researches have been made elsewhere in the world to reduce the pollutant components of the exhaust gas. But the problems were not yet cleared industrial for the appliances. Thus, the intensive studies in this fields are still being carried out.<br/> The aim of this study is for the reduction of NOx and Soot using Catalyst Coating Filter (CCF) with the experimental study on the factors which have influence on the continuous regeneration of the filter. The experiments were performed in this work at conditions of load(%) at ; 50, 75, 100, and speed(rpm) at ; 1000, 1250, 1500, 1750.
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