탄산칼슘 기반 요오드칼륨 흡수제를 활용한 습식스크러버 기반질소산화물 및 황산화물 동시 제거 (Simultaneous Removal of NOx and SOx with Wet Scrubber using CaCO3-based KI Absorbent)

서지정보

· 발행기관 : 한국에너지기후변화학회
· 수록지 정보 : 에너지기후변화학회지 / 18권 / 1호 / 50 ~ 60페이지
· 저자명 : 이광택, 이예완, 김용진, 한방우, 김상복, 박인용, 이건희, 박대훈, 홍기정, 김학준

초록

Air pollution has been issued as a major environmental problem for decades. In particular, nitric oxides (NOx)and sulfur oxides (SOx), which are the main pollutants emitted from the various point and non-point sources, areregarded as the main target due to their detrimental effects on human health and the environment. The selective catalyticreduction and wet flue gas desulfurization, which are conventional unit processes, are associated with poor catalystdurability, high-temperature requirement, high investment, and plenty of wastewater production. In this study, therefore,NOx and SOx were simultaneously reduced by a unit wet scrubber system using a KI-based absorbent. NO was oxidizedby ozone to increase NOx solubility and optimal O3:NO was 1.7. The pilot-scale study demonstrated that although NOxremoval efficiency was 73% owing to the low conversion rate of NO to NO2, SOx removal efficiency was maintained at 99%.
With the future development of optimal conditions, the cost-effective operation of a simultaneous wet scrubber systemis feasible.

영어초록

Air pollution has been issued as a major environmental problem for decades. In particular, nitric oxides (NOx)and sulfur oxides (SOx), which are the main pollutants emitted from the various point and non-point sources, areregarded as the main target due to their detrimental effects on human health and the environment. The selective catalyticreduction and wet flue gas desulfurization, which are conventional unit processes, are associated with poor catalystdurability, high-temperature requirement, high investment, and plenty of wastewater production. In this study, therefore,NOx and SOx were simultaneously reduced by a unit wet scrubber system using a KI-based absorbent. NO was oxidizedby ozone to increase NOx solubility and optimal O3:NO was 1.7. The pilot-scale study demonstrated that although NOxremoval efficiency was 73% owing to the low conversion rate of NO to NO2, SOx removal efficiency was maintained at 99%.
With the future development of optimal conditions, the cost-effective operation of a simultaneous wet scrubber systemis feasible.

참고자료

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