PERMEATION OF PURE GASES UNDER PRESSURE THROUGH ASYMMETRIC POROUS MEMBRANES - MEMBRANE CHARACTERIZATION AND PREDICTION OF PERFORMANCE
PERMEATION OF PURE GASES UNDER PRESSURE THROUGH ASYMMETRIC POROUS MEMBRANES - MEMBRANE CHARACTERIZATION AND PREDICTION OF PERFORMANCE
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DOI：
10.1021/i200024a014
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发表时间：
1984-01-01
期刊：
影响因子：
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通讯作者：
SOURIRAJAN, S
中科院分区：
文献类型：
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作者：
RANGARAJAN, R;MAZID, MA;SOURIRAJAN, S
在室温下测量了氢气、氦气、甲烷、氮气、乙烯和氩气通过不对称多孔醋酸纤维素、水解醋酸丙酸纤维素和聚砜膜的渗透速率。实验数据已被分析的传输方程，其中包括在膜表面上的孔径分布的条款。输运机制涉及同时通过多孔结构的努森流、滑移流、粘性流和表面流。该分析对于膜表征和相对于参考气体的性能预测是有用的。
Permeation rates of hydrogen, helium, methane, nitrogen, ethylene, and argon through asymmetric porous cellulose acetate, hydrolyzed cellulose acetate propionate, and polysulfone membranes have been measured at room temperature. The experimental data have been analyzed by a transport equation which incorporates terms for a pore size distribution on the membrane surface. The mechanism of transport involves simultaneous Knudsen, slip, viscous, andsurface flow through the porous structure. The analysis is useful for membrane characterization and prediction of performance with respect to a reference gas.