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http://dx.doi.org/10.14478/ace.2017.1068

High Efficiency Hybrid Ion Exchange Chemical Filter for Removal of Acidic Harmful Gases  

Jung, Youn Seo (Chemical Engineering and Applied Chemistry, Chungnam National University)
Kim, In Sik (Chemical Engineering and Applied Chemistry, Chungnam National University)
Hyeon, Seung Mi (Chemical Engineering and Applied Chemistry, Chungnam National University)
Hwang, Taek Sung (Chemical Engineering and Applied Chemistry, Chungnam National University)
Publication Information
Applied Chemistry for Engineering / v.28, no.5, 2017 , pp. 539-546 More about this Journal
Abstract
In this study, an outstanding anion exchange chemical filter was prepared for acidic gas removal. Commercial anion exchange resin was attached to polyurethane (PU) foam by using different types of pressure sensitive adhesive (PSA). The water and chemical resistance and also adhesive elongation were investigated. Also, the behavior of HCl and HF adsorption was evaluated as functions of the initial concentration and flow rate. ATE-701, AT-4000C and HCA-1000 showed 900, 1,500% and 2,400% of the elongation, respectively. It was confirmed that the desorption ratio of HCA-1000 was less than 6% and had excellent durability in water and chemical resistance tests. The adsorption occurred faster as the concentration and flow rate of HCl and HF increased. But 100% adsorption equilibrium occurred after 110 minutes, regardless of the concentration and flow rate. In addition, SEM morphology showed that the adhesive was uniformly dispersed, while the porous structure of the ion exchange resin was maintained, and the chemical filter exhibited excellent durability for the adsorption/desorption process.
Keywords
chemical filter; adsorption; acidic gas; anion exchange; ion-exchange resin;
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