한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제29권3호
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  • Pages.317-324
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  • 2013
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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암모니아 가스 제거용 개질 활성탄의 표면특성

Surface Properties of Modified Activated Carbon for Ammonia Gas Removal

  • 이성우 (서울과학기술대학교 환경공학과 폐자원바이오매스에너지화센타) ;
  • 오길용 (서울과학기술대학교 환경공학과 폐자원바이오매스에너지화센타) ;
  • 김리나 (서울과학기술대학교 환경공학과 폐자원바이오매스에너지화센타) ;
  • 김대근 (서울과학기술대학교 환경공학과 폐자원바이오매스에너지화센타)
  • Lee, Seongwoo (Waste-resource Biomass Energy Center, Department of Environmental Engineering, Seoul National University of Science and Technology) ;
  • Oh, Gilyong (Waste-resource Biomass Energy Center, Department of Environmental Engineering, Seoul National University of Science and Technology) ;
  • Kim, Rina (Waste-resource Biomass Energy Center, Department of Environmental Engineering, Seoul National University of Science and Technology) ;
  • Kim, Daekeun (Waste-resource Biomass Energy Center, Department of Environmental Engineering, Seoul National University of Science and Technology)
  • 투고 : 2013.04.29
  • 심사 : 2013.05.22
  • 발행 : 2013.06.30
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초록

This research assessed the surface properties of modified activated carbons with three different acids and five different metals for ammonia gas removal. Raw bituminous coal-based activated carbon ($4{\times}8$ mesh) had low adsorption capacity of 0.72 mg $NH_3/g$ based on the analysis in the column adsorption experiment. Adsorption capacities of carbons modified with $CH_3COOH$, $H_3PO_4$, and $H_2SO_4$ increased up to 3.34, 21.00, and 35.21 mg $NH_3/g$, respectively. Those of carbons with Cu, Zn, Zr, Fe, and Sn were 9.63, 9.13, 7.09, 25.12 and 15.03 mg $NH_3/g$. Ammonia adsorption was enhanced by the presence of surface oxygen groups on carbon materials, which influenced pH of carbon surface. BET surface area of raw carbon was analyzed to be $1087m^2/g$, but it decreased by carbon surface modification. Fe-impregnated carbon showed $503.02m^2/g$ of surface area. These observations were mostly caused by chemical adsorption.

키워드

참고문헌

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피인용 문헌

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  2. Development of Mobile Vortex Wet Scrubber and Evaluation of Gas Removal Efficiency vol.34, pp.2, 2015, https://doi.org/10.5338/KJEA.2015.34.2.18