Acid Gas Permeation Behavior Through Poly(Ester Urethane Urea) Membrane
Acid Gas Permeation Behavior Through Poly(Ester Urethane Urea) Membrane
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DOI：
10.1021/ie071493k
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发表时间：
2008-09
影响因子：
4.2
通讯作者：
T. Mohammadi;M. T. Moghadam;M. Saeidi;M. Mahdyarfar
中科院分区：
文献类型：
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作者：
T. Mohammadi;M. T. Moghadam;M. Saeidi;M. Mahdyarfar
研究了纯气体（CO2、N2、CH 4）和CO2、CH 4、H2S三元混合气体在不同压力、温度和进料组成下通过聚酯氨酯脲膜的渗透行为。在35、45和55 °C的温度和10、20和30巴的压力下测定CO2、CH 4和H2S通过膜的渗透率。实验研究了温度、压力和分段切割对气体透过膜的影响。由于本研究的主要目的是评估上述膜去除酸性气体应用的能力，因此将本研究中测量的聚（酯氨基甲酸酯脲）的选择性与几乎相同操作条件下的一些其他聚合物膜的选择性进行比较。H2S/CH 4和CO2/CH 4的最大选择性分别为43和16。H2S和CO2的平均渗透率分别为95和45 GPU。
Permeation behavior of pure gases (CO2, N2, CH4) and ternary gas mixtures of CO2, CH4, and H2S through a poly(ester urethane urea) membrane was investigated at different pressures, temperatures, and feed compositions. Permeances of CO2, CH4, and H2S through the membrane were determined at temperatures of 35, 45, and 55 °C, and pressures of 10, 20, and 30 bar. Effects of temperature, pressure, and stage cut on the permeability of gases through the membrane were experimentally studied. Since the main objective of this study was to evaluate the aforesaid membrane for its ability to remove acid gas application, the measured selectivity of poly(ester urethane urea) in this study was compared with that of some other polymeric membranes at nearly the same operating conditions. Maximum selectivities of 43 and 16 were measured for H2S/CH4 and CO2/CH4, respectively. Average permeances of 95 and 45 GPU for H2S and CO2 were achieved, respectively.