화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.25, No.3, 189-197, September, 2019
DOI10.7464/ksct.2019.25.3.189  Export Citation
황화수소(H2S) 흡착성능 증진을 위한 K-Fe-Li 3원계 금속이온물질이 담지된 활성탄 흡착제 제조조건 최적화 및 적용성 평가 연구
A study on the Optimization of Activated carbon Adsorbent Preparation condition and Evaluation of Application Supporting of K-Fe-Li ternary metal ions for Improving Adsorption Capacity of Hydrogen Sulfide (H2S)
최성열, 한동희, 김성수1, †
  • 경기대학교 일반대학원 환경에너지공학과, 16227 경기도 수원시 영통구 광교산로 154-42
  • 1경기대학교 환경에너지공학과, 16227 경기도 수원시 영통구 광교산로 154-42
Sung Yeol Choi, Dong hee Han, and Sung Su Kim1, †
  • Department of Environmental Energy Engineering, Graduate School of Kyonggi University, 154-42 Gwanggyosan-ro, Youngtong-ku, Suwon-si, Gyeonggi-do 16227, Korea
  • 1Department of Environmental Energy Engineering, Kyonggi University, 154-42 Gwanggyosan-ro, Youngtong-ku, Suwon-si, Gyeonggi-do 16227, Korea
E-mail:
초록
본 연구에서는 대표 악취물질로 분류되는 황화수소(hydrogen sulfide, H2S)를 처리하기 위해 3원계의 금속이온 물질이 담지된 활성탄의 제조조건 최적화에 대한 연구를 수행하였다. H2S 흡착성능 증진을 위한 금속이온 물질로는 H2S 흡착성능 증진 물질인 KI를 기반으로 Li 및 Fe 또는 3원계(K, Li, Fe)로 조합 시 성능 증진을 확인하였으며, 이는 XRD 분석을 통해 각 활성 물질의 H2S와의 반응 또한 결합에 의한 것으로 판단하였다. 흡착제의 열처리시 질소를 이용한 경우 공기에 비교하여 흡착 성능이 약 3배 이상 증가하였다. 최적 흡착제의 최대 흡착량 상수(qm)값은 97.07로써 기존 K 기반 첨착활성탄 대비 6배의 흡착성능이 나타났으며, 물질전달속도와 흡착속도 간 평형에 의해 객관적인 흡착량(0.3 g g-1 이상)이 확보됨을 확인하였다. 입자 크기에 따른 흡착제 성능 차이를 확인한 결과, 성능의 구배는 존재하나 시약급 활성탄 입자 크기를 가지는 활성탄의 개질 시에도 성능 증진이 뚜렷함을 확인하였다. 상대습도가 비교적 높은 60, 100%에서도 흡착성능이 존재함을 확인하였으며, 이를 통해 스크러버 후단과 같은 습도가 높은 실 공정에도 적용 가능할 것으로 판단된다.
In this study an optimization of the preparation conditions of activated carbon with a ternary metal ion material to treat H2S, which is classified as a representative odor substance, was carried out. For a metal ion material for enhancing the adsorption performance of hydrogen sulfide, performance enhancement was confirmed by combining Li and Fe or a ternary combination (K, Li, Fe) based on KI, which is a substance promoting hydrogen sulfide adsorption performance. Also, it was determined by XRD analysis that the reaction of each active substance with H2S was because of binding. The adsorption performance increased more than 3 times with heat treatment of the adsorbent with nitrogen compared with heat treatment with air. The maximum adsorption constant (qm) value of the optimum adsorbent was 97.07, which is 6 times higher than that of the existing K-based impregnated activated carbon. It was confirmed that the objective adsorption amount (0.3 g g-1) was secured by an equilibrium between the mass transfer rate and adsorption rate. From the results, it was confirmed that the performance improvement was noticeable even when activated carbon with a reagent grade activated carbon particle size was modified. It was confirmed that the adsorption performance exists at high relative humidity levels of 60 and 100%, and the optimized preparation can be applied to a wet process such as a scrubber downstream.
Keywords:H2S (hydrogen sulfide);activated carbon;active metal ion;adsorbent;odor
  1. Park GH, Oh GY, Lee JH, Jung KH, Jung SY, Korean J. Odor Research & Eng., 4(4), 196-206.
  2. Lee JH, Kim DK, J. Odor Indoor Environ., 17(3) (2018)
  3. Han YS, Choi WJ, Kim TJ, Kim IG, Oh KJ, J. Kor. Soc. Environ. Eng., 30(11), 1132 (2008)
  4. Popoola LT, Grema AS, Latinwo GK, Gutti B, Balogun AS, Int. J. Ind. Chem., 4(1), 35 (2013)
  5. Park DS, Lim JY, Cho YG, Song SJ, Kim JH, JKAIS, 15(7), 4675 (2014)
  6. Jung CK, MAFRA, (2000).
  7. Kwon WT, Theor. Appl. Chem. Eng., 2(1), 709 (1996)
  8. Min HK, Ahmad T, Park M, Lee SS, J. Korean Soc. Atmos. Environ., 31(3), 302 (2015)
  9. Adib F, Bagreev A, Bandosz TJ, J. Colloid Interface Sci., 214(2), 407 (1999)
  10. Laosiripojana N, Sitthikhankaew R, Predapitakkun S, Kiattikomol RW, Pumhiran S, Assabumrungrat S, Energy Procedia, 9, 15 (2011)
  11. Yan R, Liang DT, Tsen L, Tay HJ, Environ. Sci. Technol., 36, 4460 (2002)
  12. Choi DY, Lee JW, Jang SC, Ahn BS, Choi DK, Adsorption, 14(4-5), 533 (2008)
  13. Barelli L, Bidini G, de Arespacochaga N, Perez L, Sisani E, Int. J. Hydrog. Energy, 42(15), 10341 (2017)
  14. Rakmak N, Wiyaratn W, Bunyakan C, Chungsiriporn J, Chem. Eng. J., 162(1), 84 (2010)
  15. Perego C, Villa P, Catal. Today, 34(3-4), 281 (1997)
  16. Cho KC, Im ZW, Cho SW, Song JS, Oh KJ, J. Kor. Soc. Environ. Eng., 21(10), 2003 (1999)
  17. Luis PFSS, Portugal (2017).
  18. Yumura M, Furimsky E, Appl. Catal., 16(2), 157 (1985)
  19. Zhao J, Yang L, Li F, Yu R, Jin C, Carbon, 47(3), 744 (2009)
  20. Belhachemi M, Addoun F, J. Chem., (2011).
  21. Volesky B, Holan ZR, Biotechnol. Prog., 11(3), 235 (1990)
  22. Suh KH, Ahn KH, Cho MC, Cho JK, Jin HJ, Hong YK, J. Korea Soc. Fish Ocean Technol., 34, 1 (2001)
  23. Choi IW, Kim SU, Seo DC, Kang BH, Sohn BK, Rim YS, Heo JS, Cho JS, KJEA, 24, 370 (2005)
  24. angmuir I, J. Am. Chem. Soc., 40, 1361 (1918)
  25. Allen SJ, Brown PA, J. Chem. Technol. Biotechnol, 62(1), (1995).
  26. Phillips CSG, Discuss. Faraday Soc., 7, 241 (1949)
  27. Hedden K, Huber L, Rao BR, VDI-Ber., 253 (1976)