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단일성분 흡착등온선으로부터 혼합물의 흡착평형 예측

The Prediction of Binary Gas Mixture Adsorption Equilibria from single Component Adsorption Isotherm

조찬휘 이한주

Cho C Lee H

HWAHAK KONGHAK, December 1991, 29(6), 709-716(8), NONE

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Abstract

제올라이트 5A(Davison C-625) 흡착제에 CO₂, CH₄, C₂H₆, C₃H₈의 단일성분 흡착데이타로부터 이들의 혼합물에 대한 흡착평형 테이타를 평가하였다. 단일성분 흡착데이타를 가장 잘 일치시켜 주는 매개변수들을 비선형회귀범으로 구하였으며 이 매개변수들을 이용하여 혼합물의 흡착평형 데이터를 에측할 결과 W-VSM이 가장 우월한 예측결과를 보였고, 비이상성 혼합물에 대해서도 정성적으로 가장 잘 예측하였다. C₃H₈-CO₂는 323.15K, 12.26kPa에서 공비혼합물을 형성하였으며 CO₂, CH₄, C₂H₈의 등량 흡착열은 각각 10.79kcal/mol, 6.95kcal/mol, 9.2kcal/mol, 11.85kcal/mol이었다.

This study is to predict adsorption equilibrium data for their binary gas mixture systems from pure gas adsorption data of CO₂, CH₄, C₂H₆ and C₃H₈ on zeolite 5A (Davison C-625). A nonlinear regression method and an optimization method were employed in the calculation of the parameters. The binary mixture adsorption data have been examined against values predicted by various models using regression parameters obtained from the single component isotherms. For these systems the W-VSM gave the best representation of the experimental data. C₃H₈-CO₂ system formed an azeotropic mixture at 325.15K and 12.26kPa. Isosteric heat of adsorption for carbon dioxide, methane, ethane and propane were 10.79kcal/mol, 6.95kcal/mol, 9.2kcal/mol, 11.85kcal/mol, respectively.

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References

Bal KK, Ind. Eng. Chem. Process Des. Dev., 23, 711 (1984)
Danner RP, "Fundamentals of Adsorption," New York, Engineering Foundation, p. 335 (1984)
Peterson R, J. Phys. Chem., 63, 1024 (1959)
Cochran TW, Kabel RL, Danner RP, AIChE J., 31, 268 (1985)
Suwanayuen S, Danner RP, AIChE J., 26, 68 (1980)
Suwanayuen S, Danner RP, AIChE J., 26, 76 (1980)
Ruthven DM, Ind. Eng. Chem. Fundam., 19, 27 (1980)
Barrer RM, Trans. Faraday Soc., 61, 948 (1965)
Crosser OK, J. Chem. Eng. Data, 25, 339 (1980)