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Received September 17, 2012
Accepted April 9, 2013
Available online June 3, 2013
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UV/Photocatalysis 시스템을 이용한 EtOH의 분해 및 H2S의 산화
Decomposotion of EtOH and Oxidation of H2S by using UV/Photocatalysis System
충남대학교 화학공학과, 305-764 대전광역시 유성구 대학로 99 1경기대학교 환경에너지시스템공학과, 443-760 경기도 수원시 영통구 이의동 산 94-6 2하나검사기술(주), 465-220 경기도 하남시 초이동 337-10
Department of Chemical Engineering, Chungnam National University, 99 Deahak-ro, Yuseong-gu, Daejeon 305-764, Korea 1Department of Environmental Energy Systems Engineering, Kyonggi University, San 94-6, Iui-dong, Suwon, Youngtong-gu, Gyeonggi-do, Korea 2HANA I&E, 337-10 Choi-dong, Hanam, Gyeonggi-do 465-220, Korea
Korean Chemical Engineering Research, June 2013, 51(3), 297-302(6)
https://doi.org/10.9713/kcer.2013.51.3.297
https://doi.org/10.9713/kcer.2013.51.3.297
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Abstract
악취 유발 물질인 H2S를 처리하기 위한 UV/photocatalysis의 성능 향상에 관한 연구를 수행하였다. 광촉매 물질을 선정하기 위하여 EtOH을 기준물질로 사용하였으며, 광촉매 반응기의 광활성은 광촉매 반응기의 표면에 코팅된 광촉매의 표면특성과 높은 상관성을 나타냄을 확인하였다. PS 광촉매(STS-01)가 코팅된 광촉매 반응기는 기체선속도가 0.01 m/s, 상대습도가 40%의 조건에서 약 80%의 H2S 산화효율을 보였으나, 그 이상의 선속도에서 반응활성은 급격히 감소하였다. 광촉매 반응기의 성능유지를 위하여 백금을 광촉매에 담지하였는데 이는 같은 실험조건에서 95% 이상의 우수한 H2S 전환율을 나타내었다.
Enhancement of photocatalytic activity of UV/photocatalysis was carried out to oxidize the gaseous H2S in a tubular reactor coated with photocatalyst of sol type TiO2. EtOH was used as the standard material to select the photocatalyst, and it was confirmed that the reactor activity was dependent on the coated surface characteristics. The selected photocatalytic reactor, which coated with STS-01, showed about 80% conversion when the gas linear velocity was 0.01 m/s and relative humidity was 40%. However, the conversion level of the reaction decreased significantly with increasing gas linear velocity. Pt was loaded on the photocatalyst to enhance and maintain the performance of the reactor, which enhanced the conversion level of H2S more than 95% under the same experimental condition.
Keywords
References
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