Separation of VOC vapor from air by a surface-soaked liquid membrane module using triethylene glycol
Separation of VOC vapor from air by a surface-soaked liquid membrane module using triethylene glycol
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DOI：
10.1016/j.seppur.2009.05.006
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发表时间：
2009-08
影响因子：
8.6
通讯作者：
Guozhe Sui;Jinlong Li;A. Ito
中科院分区：
文献类型：
--
作者：
Guozhe Sui;Jinlong Li;A. Ito
采用一种新型的三甘醇（TEG）表面浸渍液膜及其平板膜组件对空气中的挥发性有机化合物（VOC）进行了分离。液膜面积为0.39m2，液膜厚度为21μm，采用扫气真空渗透方式。测试了膜过程用于分离VOC蒸气如苯、甲苯等的性能，在1m3室中的空气中以1000ppm的浓度。TEG液膜法的VOC去除率与活性炭通风吸附法相当。三甘醇液膜法被证明是有用的VOC从室内空气中分离。基于三甘醇液膜渗透率的模型预测了液膜过程的分离性能。
A novel surface-soaked liquid membrane with triethylene glycol (TEG) and its flat membrane modules were used for the separation of VOC vapor from air. The liquid membrane setup with a vacuum pump had a 0.39m2membrane area and 21μm liquid membrane thickness, which operated in a vacuum permeation mode with sweep air. The performance of the membrane process was tested for the separation of VOC vapors, such as benzene, toluene, etc., at a 1000ppm concentration from air in a 1m3chamber. The TEG liquid membrane process showed a VOC removal rate comparable to a ventilation and adsorption process with active carbon. The TEG liquid membrane process proved to be useful for the VOC separation from room air. A model based on the permeability through the TEG liquid membrane predicted the separation performance of the liquid membrane process.