대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제33권9호
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  • Pages.686-691
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  • 2011
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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MEA가 힘침된 MCM-41 흡착제의 $CO_2$ 흡착 특성

Characteristics of $CO_2$ Adsorption by MEA Impregnated MCM-41

  • Lee, Jung-Beom (Department of Environmental Science, Keimyung University) ;
  • Choi, Sung-Woo (Department of Environmental Science, Keimyung University)
  • 투고 : 2011.05.31
  • 심사 : 2011.09.28
  • 발행 : 2011.09.30
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초록

본 연구는 MEA가 함침된 MCM-41에 대하여 이산화탄소 흡착실험과 특성 분석을 하였다. 흡착제의 XRD, FT-IR, $N_2$흡탈착 실험을 통하여 물리적 특성을 분석하였으며, 흡착실험은 15%의 이산화탄소를 사용하여 GC-TCD를 통하여 분석하였다. MEA 함침량이 10~40 wt%까지 함침량이 증가할수록 이산화탄소 흡착능은 증가하였다. 그러나 MEA 함침량이 50 wt%에서 흡착능이 감소하였다. 많은 아민이 제공되면 흡착제 표면에서 제공된 아민이 변형되는 경향이 있다. 그러므로 이산화탄소 흡착능이 감소될 수 있다. 본 연구의 결과로 이산화탄소 흡착을 위한 MCM-41에 MEA의 함침 함량의 조절이 중요하다는 것으로 사료되어진다.

The $CO_2$ adsorption and characteristics of mesoporous silica MCM-41 impregnated by MEA (Monoethanolamine) were examined in this study. The adsorbents were characterized by XRD (X-ray powder diffraction), FT-IR (Fourier transform infrared spectroscopy), $N_2$ adsorption-desorption isotherms. $CO_2$ adsorption measurements were carried out using a GC-TCD unit using 15% $CO_2$ gas. The $CO_2$ adsorption capacity of MCM-41 increased by MEA contents to 10~40 wt%, otherwise MEA content of 50 wt% was decreased $CO_2$ adsorption capacity. The amines tended to deform at MCM-41 surface if too many amines were provided. Therefore $CO_2$ adsorption capacity can be decreased. The results of this study suggest it is important to control content of MEA in MCM-41 for adsorption of $CO_2$.

키워드

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