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축방향의 분산효과가 존재하는 경우의 고정층 이온 교환기의 근사해석

An Approximate Solution for Fixed Bed Ion Exchangers in the Presence of Axial Dispersion

이철수 장길상

Lee CS Chang KS

HWAHAK KONGHAK, October 1978, 16(5), 327-332(6), NONE

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Abstract

축방향의 분산효과가 존재하는 경우의 고정층 이온교환기의 전이해는 일반적으로 수치해에 존재하게 되며 교환속도식에 따라서는 상당히 많은 계산시간을 소요하게 된다. 본 논문에서는 분산효과를 나타내는 이차편미분항을 제거하고 교환속도식 및 속도정수를 보정하여 해를 쉽게 구할 수 있는 방법을 검토하였으며 선형 및 비선형 교환속도식에 대하여 좋은 결과를 얻었다.

Transient solutions for fixed bed ion-exchangers in the presence of the axial dispersion are generally obtained by numerical methods which usually take lengthy computing time depending upon the exchange rate equation used. In this study we obtained the solution relatively easily by ommitting the second order derivative term and by adjusting the rate equation and constant. Good results were obtained for both linear and nonlinear rate equations.

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