콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Hybrid Bead Air Filters with Low Pressure Drops at a High Flow Rate for the Removal of Particulate Matter and HCHO
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2022-01
- 저자명 Hee Ju Kim, Ye Jin Kim, Yu Jin Seo, Ji Hee Choi, Hye Young Koo, Won San Choi*
- 학술지명 Polymers
- 발행처명 MDPI
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 6
- 논문 다운로드 링크(외부) https://doi.org/10.3390/polym14030422
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
A tower air filtration system was designed in which bead air filters (BAFs) were actively rotated by a fan motor to remove particulate matter (PM) or HCHO gas. Three types of BAF, hydrophilic, hydrophobic, and hybrid, were prepared and compared for the removal of PM and HCHO gas. A tower air filtration system loaded with hybrid BAFs purified 3.73 L of PM (2500 μg/m3 PM2.5) at a high flow rate of 3.4 m/s with high removal efficiency (99.4% for PM2.5) and a low pressure drop (19 Pa) in 6 min. Against our expectations, the PM2.5 removal efficiency slightly increased as the air velocity increased. The hybrid BAF-200 showed excellent recyclability up to 50 cycles with high removal efficiencies (99.4–93.4% for PM2.5). Furthermore, hydrophilic BAF-200 could permanently remove 3.73 L of HCHO gas (4.87 ppm) and return the atmosphere to safe levels (0.41–0.31 ppm) within 60 min without any desorption of HCHO gas.
