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석탄화력발전소 저온영역에서 조촉매 성분 및 함량에 따른 Metal type SCR 코팅 촉매 성능 연구
주은영,마동민,강다현,김미라,최동석,나우진,박해경 한국산학기술학회 2023 한국산학기술학회논문지 Vol.24 No.12
As NOx emission regulations are tightening, conventional SCR catalysts installed in coal-fired power plants cannot satisfy the regulations. In this study, NOx was reduced using a metal substrate catalyst with a high bulk surface area and high thermal responsiveness at low temperatures. The catalytic slurries were prepared with 14wt% V and different contents of Co, Ce, and W. The de-NOx performances of the prepared catalysts were investigated using a laboratory-scale atmospheric pressure reactor. The catalysts were characterized by air jet erosion, pressure drop test, Brunauer-Emmett-Teller surface area measurements, x-ray fluorescence spectroscopy, and scanning electron microscopy. At 180°C, the catalysts with Co and Ce exhibited lower de-NOx performance than those prepared with V alone. The catalyst with 8 wt. % W showed 4.6% higher de-NOx performance than the catalyst with V alone. A comparison of the pressure drop with the commercial honeycomb catalyst revealed the CPSI of the metal substrate to be twice as high, but the pressure drop was lower than the commercial honeycomb catalyst, and the de-NOx performance was better. Overall, the SCR catalyst coated on a metal substrate is a new type of catalyst that can be applied to various fields where the SCR process is applied.
아키살롱 - 주거복지와 공동체 회복, 사회문제를 해결하고 극복하는 '건축'
강영구,류가영,마동민,Kang, Youngkoo,Ryu, Gayeong,Ma, Dongmin 대한건축사협회 2020 建築士 Vol.613 No.-
건축은 필연적으로 공공성에 대해 고민하고 풀어가야 한다. 우리는 건축이 사회문제로부터 직접적인 피해를 받는 약자와 소수자에게 도움이 된, 나아가 문제를 해결하고 극복할 수 있도록 긍정적 영향을 미친 사례를 소개하고자 한다.