在吸附仪上分别测定了在国产碳分子筛和国外优质碳分子筛上Ｏ２、Ｎ２、ＣＨ４、ＣＯ２等的吸附量及吸附等温线，推测其微孔孔径分布，并由吸附理论方程和微孔填充理论方程计算出碳分子筛的比表面积和微孔容积。比较了碳分子筛制氮流程的产氮率、氮气回收率与碳分子筛对氧、氮等动态吸附量的关系，简化了制氮碳分子筛的性能评价工作 The adsorption capacity and adsorption isotherms of O2, N2, CH4 and CO2 on domestic carbon molecular sieve and foreign high-quality carbon molecular sieve were measured on the adsorber, and the pore size distribution was inferred. The adsorption theoretical equation and micropore filling theory The equation calculates the specific surface area and pore volume of the carbon molecular sieve. The relationship between nitrogen production rate, recovery rate of nitrogen and the dynamic adsorption capacity of carbon molecular sieve to oxygen and nitrogen were compared, and the performance evaluation of nitrogen molecular sieve carbonization was simplified