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자료유형
학술저널
저자정보
현건웅 (고등기술연구원) 박정은 (고등기술연구원) 이기쁨 (고등기술연구원) 홍범의 (고등기술연구원)
저널정보
한국에너지기후변화학회 에너지기후변화학회지 에너지기후변화학회지 Vol.18 No.2
발행연도
2023.12
수록면
365 - 377 (13page)

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In this study, we selected five odorous gases—hydrogen sulfide, ammonia, acetaldehyde, methyl mercaptan, and trimethylamine—from medical waste and evaluated their removal efficiency using a plasma system. The results for a single odor gas revealed complete oxidation of hydrogen sulfide, ammonia, and acetaldehyde under most experimental conditions. However, the removal efficiencies of methyl mercaptan and trimethylamine were less than 100%, indicating incomplete removal due to their low ionization energies. The concentration of trimethylamine was lower than that of methyl mercaptan, demonstrating better dissociation owing to its higher quenching coefficient and resulting in a higher removal efficiency than methyl mercaptan. The evaluation of four mixed gas cases demonstrated a 100% removal efficiency for normal and excess air ratios in a 1 kW plasma system. This system proved to efficiently process odorous gases at 100 ppm originating from medical waste. The amount of NO<SUB>x</SUB> generated was proportional to the trimethylamine concentration, as observed in the characteristics of the gas discharged after removal. The combustion efficiency of the complex mixed gas was assessed using the same capacity (1 kW) by comparing liquid propane gas combustion efficiency with that of plasma combustion. Although liquid propane gas combustion efficiency varied depending on the mixing ratio at 100 ppm, it decreased from 91% to 45% as the total hydrocarbons mixing ratio increased. The NO<SUB>x</SUB> concentration in the exhaust gas was twice that of plasma system. Thus, the removal efficiencies of the five odorous gases from medical waste were influenced by the ionization energy and quenching coefficient at each ionization stage. Plasma system is deemed more appropriate than liquid propane gas combustion for the complete removal of complex gases.

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ABSTRACT
1. 서론
2. 실험방법
3. 실험결과
4. 결론
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