【摘要】 研究了以ＰＡＮ（聚丙烯腈）基中空纤维膜为基质制备中空纤维炭膜的过程。考察了ＰＡＮ原膜的预氧化和炭化条件对中空纤维炭膜Ｈ２、Ｎ２气体渗透性和选择性的影响。结果表明，预氧化温度和时间对Ｈ２、Ｎ２气体的渗透速率有一定影响；随着炭化温度和时间的增加，Ｈ２、Ｎ２气体的渗透速率下降，分离系数有所提高。在此基础上，用扫描电镜观测了原膜和炭膜表面和断面形态结构。并对典型炭膜性能进行了分析。更多还原

【Abstract】 This paper presents astudy of aprocess for preparing ahollow fiber carbonmembranefrom PAN based hollow fiber membrane The influnces of preoxidation and car bonizationconditions on the permeability and selectivity of H 2 and N 2 through the carbonmembraneare discussed The results show that increase in temperature and duration time ofthepreoxidation increases the permeation rates of H 2 and N 2 but has only alittle effect on theseperationfactor of H 2 and N 2 The permeation rates of H 2 and N 2 decrease with increasingcarbonizationtemperature,but the seperation factor of H 2 and N 2 increases with increasingcarbonizationtemperature The surface and crosssection structures of the carbon membraneandthe precursor membrane were studied with SEM The performances of amodel carbonmembraneare analyzed更多还原