화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.30, No.4, 460-465, August, 2019
DOI10.14478/ace.2019.1041  Export Citation
황화수소(H2S) 흡착을 위한 금속산화물 기반 흡착제의 활성물질 최적화 및 입상형 흡착제 제조에 대한 연구
A Study on the Optimization of Active Material and Preparation of Granular Adsorbent of Metal Oxide-based Adsorbent for Adsorption of Hydrogen Sulfide (H2S)
최성열, 한동희, 김성수1, †
  • 경기대학교 일반대학원 환경에너지공학과
  • 1경기대학교 환경에너지공학과
Sung Yeol Choi, Dong Hee Han, and Sung Su Kim1, †
  • Department of Environmental Energy Engineering, Graduate School of Kyonggi University, 154-42 gwanggyosanro, Youngtong-ku, Suwon-si, Gyeonggi-do 16227, Korea
  • 1Department of Environmental Energy Engineering, Kyonggi University, 154-42 gwanggyosanro, Youngtong-ku, Suwon-si, Gyeonggi-do 16227, Korea
E-mail:
초록
본 연구에서는 각종 산업시설에서 발생하는 H2S를 처리하기 위하여 금속산화물 기반의 흡착제의 활성물질 최적화 및 입상형 흡착제 제조에 관한 연구를 진행하였다. 적용되는 흡착제는 금속산화물 중 높은 물리화학적 안정성과 비교적 큰 비표면적을 가지는 TiO2를 이용하여 활성물질의 종류와 함량을 다르게 제조하였다. 이러한 흡착제의 물리화학적 특성과 흡착성능과의 상관관계를 확인한 결과 활성금속 중 대표적인 알칼리 물질인 KI를 첨착한 흡착제의 흡착성능이 가장 우수하였으며, 함량과 흡착성능의 관계는 비례하지 않고 volcano plot을 나타냈다. XRD, SEM, BET 분석을 통해 특정 함량 이상부터 활성물질이 표면에 노출됨을 확인하였으며, 비표면적은 40~100 m2/g, 기공의 부피는 0.1~0.3 cm3/g의 기공 특성을 가질 때 흡착성능이 가장 우수한 것으로 판단하였다. 실 공정 적용을 위해 흡착제를 입상형으로 성형 또는 세라믹 지지체에 코팅을 진행하였으며, 성형보다는 세라믹 지지체에 흡착제를 코팅하였을 때 우수한 흡착성능을 나타내는 것으로 확인하였다.
In this study, the optimization of active materials and the preparation of particulate adsorbents for the application of metal oxide-based adsorbents for the treatment of H2S, an air pollutant and odorant, occurred in various industrial facilities were investigated. The adsorbents were prepared by using TiO2, which has a high physicochemical stability and relatively high specific surface area among metal oxides and also by different kinds and contents of active materials. The correlation between the physicochemical property and adsorption performance of the adsorbents confirmed that the adsorbent containing KI, which is a typical alkali metal among the active metals, showed the highest adsorption performance. The relationship between the contents and the adsorption performance was non-proportional, but a volcano plot. From XRD, SEM and BET analyses, it was confirmed that the active material was exposed to the surface above a certain amount and also the adsorption performance was the best when the specific surface area and pore volume were 40~100 m2/g and 0.1~0.3 cm3/g, respectively. For practical application, the adsorbent was granulated or coated on a ceramic support. It was also confirmed that the adsorbent showed high adsorption performance when the adsorbent was coated on the ceramic rather than that of the granulated support.
Keywords:H2S (hydrogen sulfide);Metal oxide;Coating;Adsorbent;Odor
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