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Separation of Trichlorinated Hydrocarbons by ZSM-5 Zeolite Membrane  

Lee Yong-Taek (Dept. of Chem. Eng., College of Eng., Chungnam National University)
Sim Eun-Young (Dept. of Chem. Eng., College of Eng., Chungnam National University)
Ahn Hyo-Seong (Dept. of Chem. Eng., College of Eng., Chungnam National University)
Publication Information
Membrane Journal / v.16, no.2, 2006 , pp. 159-166 More about this Journal
Abstract
MFI(Mobil Five) structured hydrophobic ZSM-5 zeolite membrane was used for selective pervaporation of trichlorinated organic compounds(trichloromethane, trichloroethane, trichloroethylene) from their aqueous solutions. ZSM-5 zeolite membrane was hydrothermally synthesized on the inside of a porous stainless steel tube by secondary growth employing ZSM-5 seed powders. Separation factors for each binary mixtures were observed $16{\sim}66$ for trichloromethane/water, $3.3{\sim}4.6$ for trichloroethane/water and $1.4{\sim}8$ for trichloroethylene/water at the experimental conditions of the feed mole fraction from 0.0001 to 0.001 with temperature ranged $25{\sim}35^{\circ}C$.
Keywords
ZSM-5; zeolite membrane; pervaporation; trichlorinated hydrocarbon;
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