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논문 기본 정보

자료유형
학술저널
저자정보
강정희 (세종대학교 토목환경공학과) 송지현 (세종대학교) 남윤기 (씨에스케이(주)) 조준표 (세종대학교 건설환경공학과)
저널정보
한국냄새환경학회 실내환경 및 냄새 학회지 실내환경 및 냄새 학회지 제15권 제3호
발행연도
2016.1
수록면
243 - 250 (8page)

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Hydrogen sulfide (H2S) emitted from various sources is a major odorous compound, and non-thermal plasma (NP)has emerged as a promising technique to eliminate H2S. This study was conducted to investigate lab-scale andpilot-scale NP reactors using corona discharge for the removal of H2S, and the effects of relative humidity, appliedelectrical power on reactor performance and ozone generation were determined. A gas stream containing H2S wasinjected to the lab-scale NP reactor, and the changes in H2S and ozone concentration were monitored. In the pilotscaleNP experiment, the inlet concentration and flow rate were modified to determine the effect of relativehumidity and applied power on the NP performance. In the lab-scale NP experiments, H2S removal was foundto be the 1st-order reaction in the presence of ozone. On the other hand, when plasma reaction and ozone generationwere initiated after H2S was introduced, the H2S oxidation followed the 0th-order kinetics. The ratio of indirectoxidation by ozone to the overall H2S removal was evaluated using two different experimental findings, indicatingthat approximately 70% of the overall H2S elimination was accounted for by the indirect oxidation. The pilotscaleNP experiments showed that H2S introduced to the reactor was completely removed at low flow rates, andapproximately 90% of H2S was eliminated at the gas flow rate of 15 m3/min. Furthermore, the elimination capacityof the pilot-scale NP was 3.4 g/m3·min for the removal of H2S at various inlet concentrations. Finally, theexperimental results obtained from both the lab-scale and the pilot-scale reactor operations indicated that the H2Smass removal was proportional to the applied electrical power, and average H2S masses removed per unit electricalpower were calculated to be 358 and 348 mg-H2S/kW in the lab-scale and the pilot-scale reactors, respectively. To optimize energy efficiency and prevent the generation of excessive ozone, an appropriate operating time ofthe NP reactor must be determined.

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