Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
권호 표지
DOI QR코드

DOI QR Code

Research Trends of Hybrid Filters for Simultaneous Removal of Particulate and Gaseous Complex Contaminants

입자상 및 가스상 복합 오염물질 동시 제거용 하이브리드 필터 연구 동향

  • Sang yeon Hwang (Next-Generation Plant Research Division, Institute for Advanced Engineering) ;
  • Cheolwoo Park (Next-Generation Plant Research Division, Institute for Advanced Engineering) ;
  • Subeen Wi (Next-Generation Plant Research Division, Institute for Advanced Engineering) ;
  • Junho Heo (Next-Generation Plant Research Division, Institute for Advanced Engineering)
  • 황상연 (고등기술연구원 탄소제로에너지연구본부) ;
  • 박철우 (고등기술연구원 탄소제로에너지연구본부) ;
  • 위수빈 (고등기술연구원 탄소제로에너지연구본부) ;
  • 허준호 (고등기술연구원 탄소제로에너지연구본부)
  • Received : 2025.07.17
  • Accepted : 2025.09.29
  • Published : 2025.10.10
Download PDF
⟨ Previous Next ⟩

Abstract

This paper reviews recent research trends in hybrid filter technologies developed for the simultaneous removal of particulate and gaseous pollutants emitted from industrial facilities. To overcome the limitations of conventional filtration and denitrification systems for PM and NOx control, integrated hybrid filters combining filtering and catalytic functions have been developed. These filters utilize high-temperature ceramic or low-temperature fibrous materials and apply various catalyst coating or embedding methods. This study analyzes the structural characteristics of ceramic and fiber-based hybrid filters, catalyst application techniques, and representative research cases. It also identifies key technical challenges for commercialization, including the durability of low-temperature catalysts, prevention of catalyst detachment, and advanced filter synthesis strategies. Hybrid filters are particularly suitable for sites with limited space, as they can be easily applied to existing facilities without extensive modifications. They are expected to contribute to the enhancement of domestic air pollution control technology and promote wider industrial adoption.

본 논문은 산업시설에서 발생하는 입자상 및 가스상 복합 오염물질의 동시 제거를 위한 하이브리드 필터 기술의 최신 연구 동향을 고찰하였다. 미세입자 및 NOx 저감을 위한 기존 여과집진 및 탈질 공정의 한계를 극복하고자, 필터와 촉매 기능을 결합한 하이브리드 필터가 개발되고 있으며, 고온용 세라믹 및 저온용 섬유 소재를 기반으로 다양한 촉매 담지 방식이 적용되고 있다. 본 연구에서는 세라믹 및 섬유 소재 하이브리드 필터의 구조적 특성, 촉매 적용 방식, 대표 연구 사례 등을 분석하고, 저온 활성 촉매의 내구성, 촉매 탈리 방지, 필터 합성 기술 등 상용화를 위한 기술적 과제를 도출하였다. 하이브리드 필터는 설치 공간이 제한된 사업장에서 기존 설비에 손쉽게 적용 가능하다는 점에서 실용성이 높으며, 국내 대기오염 저감 기술의 경쟁력 확보와 산업 현장 확산에 기여할 수 있을 것으로 기대된다.

Keywords

Acknowledgement

본 연구는 산업통상자원부(MOTIE)와 한국산업기술평가관리원(KEIT)의 지원을 받아 수행한 과제입니다(No.20026357).

References

  1. S. B. Park, Current status of micro dust(PM10/PM2.5) and countermeasures, Korea Environmental Industry & Technology Institute KONETIC REPORT, 1-13 (2016).
  2. H-W. Park and S. Uhm, Various technologies for simultaneous removal of NOx and SO2 from flue gas, Appl. Chem. Eng., 28, 607-618 (2017).
  3. P. Córdoba, Status of flue gas desulphurisation (FGD) systems from coal-fired power plants: Overview of the physic-chemical control processes of wet limestone FGDs, Fuel, 144, 274-286 (2015).
  4. K. Skalska, J. S. Miller, and S. Ledakowicz, Trends in NOx abatement: A review, Sci. Total Environ., 408, 3976-3989 (2010).
  5. Z. G. Lei, C. P. Wen, and B. H. Chen, Optimization of internals for selective catalytic reduction(SCR) for NO removal, Environ. Sci. Technol., 45, 3437-3444 (2011).
  6. D. Q. Dao, L. Gasnot, K. Marschallek, A. El Bakali, and J. F. Pauwels, Experimental study of NO removal by gas reburning and selective noncatalytic reduction using ammonia in a lab-scale reactor, Energy Fuels, 24, 1696-1703 (2010).
  7. N.-K. Park, B. C. Kwon, S. W. Lee, D. Kang, J. H. Lee, S. Y. Hwang, and M. J. Seo, Research trend of hybrid De-NOx process and catalytic filter for denitrification of combustion exhaust gas, J. Energy Climate Change, 15, 48-64 (2020).
  8. J. H. Choi, S. J. Ha, and Y. O. Park, The effect of particle shape on the pressure drop across the dust cake, Korean J. Chem. Eng., 19, 711-717 (2002).
  9. H. J. Choi, J. U. Kim, H. S. Kim, S. H. Kim, and M. H. Lee, Effect of sintering temperature in preparation of granular ceramic filter, Ceram. Int., 41, 10030-10037 (2015).
  10. S. Heidenreich, Hot gas filtration-A review, Fuel, 104, 83-94 (2013).
  11. F. Schmidt, A. Breidenbach, T. Engelke, and E. Dauber, Filtration performance of particulate air filters for general ventilation-Dust loading in real life tests vs. lab testing, Gefahrst. Reinhalt. Luft, 76, 92-96 (2016).
  12. M. D. M. Innocentini, E. H. Tanabe, M. L. Aguiar, and J. R. Coury, Filtration of gases at high pressures: Permeation behavior of fiber-based media used for natural gas cleaning, Chem. Eng. Sci., 74, 38-48 (2012).
  13. W. L. Cai and G. Hu, Oxidation degradation of polyphenylene sulfide needle felt at different sulfuric acid dew point temperatures, High Perform. Polym., 27, 94-99 (2015).
  14. Y. X. Wang, Y. K. Xu, D. Wang, Y. J. Zhang, X. Zhang, J. X. Liu, Y. Zhao, C. Huang, and X. Y. Jin, Polytetrafluoroethylene/polyphenylene sulfide needle-punched triboelectric air filter for efficient particulate matter removal, ACS Appl. Mater. Interfaces, 11, 48437-48449 (2019).
  15. I. Nova, L. dall'Acqua, L. Lietti, E. Giamello, and P. Forzatti, Study of thermal deactivation of a De-NOx commercial catalyst, Appl. Catal. B Environ., 35, 31 (2001).
  16. 홍성호, 탈질촉매 기술동향, Ceramist, 10, 53-64 (2007).
  17. B. Yang, Y. Shen, Y. Su, P. Li, Y. Zeng, S. Shen, and S. Zhu, Removal characteristics of nitrogen oxides and particulates of a novel Mn–Ce–Nb–Ox/P84 catalytic filter applied for cement kiln, J. Ind. Eng. Chem., 50, 133-141 (2017).
  18. Z. Han, V. W. C. Chang, L. Zhang, S. T. Man, O. K. Tan, and L. M. Hildemann, Preparation of TiO2-coated polyester fiber filter by spray-coating and its photocatalytic degradation of gaseous formaldehyde, Aerosol Air Qual. Res., 12, 1327-1335 (2012).
  19. B. Yang, D. H. Zheng, Y. S. Shen, Y. S. Qiu, B. Li, Y. W. Zeng, S. B. Shen, and S. M. Zhu, Influencing factors on low-temperature deNOx performance of Mn–La–Ce–Ni–Ox/PPS catalytic filters applied for cement kiln, J. Ind. Eng. Chem., 24, 148-152 (2015).
  20. J. Su, G. Yang, C. Cheng, C. Huang, H. Xu, and Q. Ke, Hierarchically structured TiO2/PAN nanofibrous membranes for high-efficiency air filtration and toluene degradation, J. Colloid Interface Sci., 507, 386 (2017).
  21. Kyocera Corporation. Comparison of fine ceramic materials. KYOCERA Global. (n.d.). from https://global.kyocera.com/prdct/fc/material-property/material/comparison/index.html.
  22. J. H. Kim, J. H. Choi, and A. D. Phule, Development of high performance catalytic filter of V2O5-WO3/TiO2 supported-SiC for NOx reduction, Powder Technol., 327, 282-290 (2018).
  23. Y. S. Zhang, C. M. Li, H. Zeng, C. Yu, J. Yu, Y. Q. Yang, G. W. Xu, and S. Q. Gao, Preparation of V2O5-WO3-TiO2/cordierite based catalytic filter for removal of NOx from flue gas, Chin. J. Process. Eng., 17, 1-8 (2017).
  24. W. M. Li, H. D. Liu, and Y. F. Chen, Fabrication of MnOx-CeO2-based catalytic filters and their application in low-temperature selective catalytic reduction of NO with NH3, Ind. Eng. Chem. Res., 59, 9 (2020).
  25. G. Saracco, S. Specchia, and V. Specchia, Catalytically modified fly-ash filters for NOx reduction with NH3, Chem. Eng. Sci., 51, 5289-5297 (1996).
  26. L. F. Miao, X. L. Wu, Z. L. Ji, Z. Zhao, C. Chang, Z. Liu, and F. Chen, Microwave-assisted preparation of porous fibrous ceramic-based catalytic filter elements for the simultaneous removal of NOx and dust from high-temperature gases, Sep. Purif. Technol., 278, 119549 (2022).
  27. L. Huangfu, A. Abubakar, C. M. Li, Y. J. Li, C. Wang, S. Q. Gao, Z. E. Liu, and J. Yu, Development of red mud coated catalytic filter for NOx removal in the high temperature range of 300-450℃, Catal. Lett., 150, 702-712 (2020).
  28. D. Fino, N. Russo, G. Saracco, and V. Specchia, A multifunctional filter for the simultaneous removal of fly-ash and NOx from incinerator flue gases, Chem. Eng. Sci., 59, 5329-5336 (2004).
  29. X. Chen, Y. Zheng, and Y. Zhang, MnO2-Fe2O3 catalysts supported on polyphenylene sulfide filter felt by a redox method for the low-temperature NO reduction with NH3, Catal. Commun., 105, 16-19 (2018).
  30. K. Min, E. D. Park, M. K. Ji, and J. E. Yie, Simultaneous removal of particulates and NO by the catalytic bag filter containing MnOx catalysts, Korean J. Chem. Eng., 26, 86-89 (2009).