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석탄회로 합성한 제올라이트에 대한 암모니아성 질소 흡착특성 조사
The Synthesis of Zeolite Using Fly Ash and its Investigate Adsorption Character
한밭대학교 화학공학과 에너지청정기술연구소, 305-719 대전시 유성구 덕명동 산16-1 1한국에너지기술연구원 에너지환경연구부, 305-343 대전시 유성구 장동 71-2 2단국대학교 공업화학과, 330-714 충남 천안시 안서동 산 29-1
Department of Chemical Engineering, Hanbat National University RCECT, San 16-1 Duckmyoung-dong, Yuseong-gu, Daejeon 305-719, Korea 1Energy & Environ., Research Department, Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 305-343, Korea 2Department of Industrial Chemistry, Dankook University, San 29-1 Anseo-dong, Chonan 330-714, Korea
whroo@hanbat.ac.kr
HWAHAK KONGHAK, August 2003, 41(4), 537-541(5)
https://doi.org/NONE
https://doi.org/NONE
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Abstract
국내 석탄화력 발전소에서 폐기되는 석탄회를 이용하여 폐수 중 암모니아성 질소 제거용 흡착제를 제조하고자 NaOH를 반응물로 한 수열합성 반응을 이용, 제올라이트를 합성하였으며 제조된 제올라이트를 실제공정에 활용하기 위하여 흡착실험 및 공정모사를 수행하였다. 또한 흡착제를 구형으로 제조하여 암모니아성 질소의 등온 흡착 공정에 이용하였으며 이 결과 Langmuir식에 잘 일치함을 알 수 있었다. 고정층에서의 흡착 거동은 축 방향 분산흐름, 입자 내부에서의 표면 확산 및 Sips 흡착 등온식을 바탕으로 한 고정층 흡착모델의 주요 공정 변수에 대한 파과곡선을 잘 모사할 수 있음을 확인할 수 있었다._x000D_
Zeolite was synthesized from coal fly ash produced by a domestic power plant and applied for the removal of ammonia from waste water. Zeolite was synthesized using a hydrothermal method involving an akaline reaction with NaOH, and adsorption experiments and simulations were conducted. Adsorption experiments with the pelletized spherical zeolite were carried out. The experimental data obtained from adsorption isotherms agreed well with the Langmuir equation. Also, most of the correlated results for the fixed bed model based on surface diffusion and Sips adsorption isotherms equation were consistent with the experimental data.
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References
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Baek IH, Min BM, Choi WG, Lee JS, Roo WH, "Development of Adsorbent Using Highly Unburned Carbon Fly Ash," Kier-A03709 (2000)
"Development Technical in Resources on Zeolite Conversion of Industrial Waste," Environment Measure Series(1), Japan, 34-36 (1994)
Yoko S, Nippon Kagaku Kaishi, 2, 136 (1996)
Dubinin MM, Astakhov VA, 2ad Int. Conf. On Molecularsieve Zeolite (1970)
Freundlich H, "Colloid and Capillary Chemistry," Mathuen, London, 110-134 (1926)
Langmuir I, J. Am. Chem. Soc., 40, 1361 (1918)
Slater MJ, "Principles of Ion Exchange Technology," Butterworth Heinemann (1991)
