摘要
吸附剂的选择是变压吸附制氧技术中的重要环节。采用静态吸附的方法测量了3种沸石分子筛在298 K、308 K和318 K时对N2和O2的平衡吸附量并绘出了相应的吸附等温线。结合3种吸附剂的特性参数以及其对N2和O2的吸附量,分析了影响沸石分子筛对N2和O2的吸附量的因素。以Langmuir吸附方程以及实验数据,计算出了这3种吸附剂在不同温度下Langmuir特征参数qm和B。研究结果可为微型变压吸附制氧系统选择合适的吸附剂提供参考。
The choice of adsorbent are important for PSA oxygen technology.In this paper,the adsorptive capacity of three kinds of ZMS for N2 and O2 at 298 K、308 K and 318 K was measured by static adsorption,and the corresponding adsorption isotherms was figured out.Combined the characteristic parameters of the three kinds of ZMS with their adsorptive capacity for N2 and O2,the factors that affect adsorptive capacity for N2 and O2 in the ZMS were analyzed.The characteristic parameter qm and B for N2 and O2 at different temperatures were calculated by fitting the experimental data with Langmuir adsorption equation.The results may be meaningful for selecting adsorbent for miniature PSA oxygen system.
出处
《低温与特气》
CAS
2011年第3期4-7,共4页
Low Temperature and Specialty Gases
关键词
沸石分子筛
静态吸附
吸附等温线
特征参数
zeolite molecular sieve
static adsorption
adsorption isotherm
characteristic parameter
