標題: Ion exchange accompanied by neutralization in an anion bed
作者: Tan, HKS
應用化學系
Department of Applied Chemistry
關鍵字: anion exchange;resin bed;neutralization
公開日期: 15-Jan-2003
摘要: The performance of the anion bed in a two-bed deionization process was investigated. Experiments and simulation were carried out with a feed solution concentration of about 0.005N. The prepared solutions were dilute acid of HCl, H2SO4 and a mixture of the two. The bed height was about 40 cm and the flow rate in the range of 75-150 ml/min. Both the binary and ternary models were used to predict the column performance. In both models, it was found that the equilibrium parameters do not affect significantly the breakthrough behavior. This is due to the accompanied neutralization reaction which results in the irreversible form of the rate equation. The experimental and theoretical breakthrough curves show very good agreement especially for the early part of the data. Results of this study suggest that a pseudo-binary or pseudo-ternary model can be used to model the fixed bed deionization process by ion exchange. (C) 2002 Elsevier Science B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/S1385-8947(02)00132-8
http://hdl.handle.net/11536/28162
ISSN: 1385-8947
DOI: 10.1016/S1385-8947(02)00132-8
期刊: CHEMICAL ENGINEERING JOURNAL
Volume: 91
Issue: 1
起始頁: 59
結束頁: 66
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