Mass-Transfer Coefficient as an Indicator of Resin Performance: Impacts of Film-Forming Amines and Storage Time on Condensate Polishing Ion-Exchange Resins,Industrial & Engineering Chemistry Research

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Mass-Transfer Coefficient as an Indicator of Resin Performance: Impacts of Film-Forming Amines and Storage Time on Condensate Polishing Ion-Exchange Resins
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-07-25 , DOI: 10.1021/acs.iecr.8b01681
Maruful Hasan , M. Montashirur Rahman , Ahmedul Kabir , Allen Apblett , Gary L. Foutch ₁

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Ion-exchange resins used in ultrapure water processing are known to lose effectiveness with fouling. Mass-transfer coefficient (MTC) is one property that defines acceptable resin performance. MTC is measured by a simple column test with known feed concentration of ions at sufficient flow to achieve kinetic leakage out of bed. MTC deviation due to exposure to film-forming amines (FFAs), as well as impacts of resin storage time, are investigated. A filming amine (FA), octadecylamine (ODA), was evaluated experimentally for potential impacts on condensate polisher ion-exchange bead resins (Dowex MS 650C (H) and Dowex MS 550A (OH)). Results indicate significant reductions in MTC on both cationic and anionic resin. In addition, unused resin stored for excessive times, up to 16 years, showed MTC reduction.

中文翻译：

传质系数作为树脂性能的指标：成膜胺和存储时间对缩合抛光离子交换树脂的影响

已知用于超纯水处理的离子交换树脂会因结垢而失去效力。传质系数（MTC）是定义可接受的树脂性能的一种属性。通过简单的柱测试，以已知的离子进料浓度和足够的流量测量MTC，以实现床外的动态泄漏。研究了由于暴露于成膜胺（FFA）引起的MTC偏差以及树脂储存时间的影响。通过实验评估了成膜胺（FA），十八烷基胺（ODA）对缩合抛光剂离子交换珠树脂（Dowex MS 650C（H）和Dowex MS 550A（OH））的潜在影响。结果表明，阳离子和阴离子树脂的MTC均显着降低。此外，未使用的树脂长时间存储（长达16年）显示出MTC减少。

更新日期：2018-07-25

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