摘要
目的分析沸石5A分子筛吸附乘员舱CO2的性能。方法采用Origin软件对沸石5A分子筛吸附CO2、N2以及O2的实验数据与Langmuir,Freundlich及BET等温吸附方程式的适配性进行拟合分析,结合混合气体竞争吸附理论,计算竞争吸附情况下3种气体的吸附量。结果获得了适用方程的相关常数,计算出了竞争吸附下3种气体的吸附量。结论N2在吸附过程中将对CO2的吸附产生较大影响,可考虑适当改进分子筛,使其将N2的影响降到最低。
Objective To analyze the performance of adsorbing CO2 with zeolite 5A molecular sieve in crew module. Methods Fitting analysis was based on experimental data of adsorbing CO2,O2 and N2 with zeolite 5A molecular sieve and the suitability of isotherm adsorbing equation of Langmuir,Freundlich and BET models to be conducted with Origin software. Then using obtained equations and competitive adsorbing theory,the adsorbed amounts of these three kinds of gas under competitive condition were calculated. Results The constants in equations for adsorbing CO2,O2 and N2 with zeolite 5A molecular sieve were determined,and adsorbed amounts for above three kinds of gases under competitive condition were calculated. Conclusion The adsorbed CO2 amount is affected by high fraction of N2. Therefore zeolite 5A molecular sieve should be modified technically so that its adsorption in N2 might be reduced to an ignored amount.
出处
《航天医学与医学工程》
CAS
CSCD
北大核心
2009年第4期255-258,共4页
Space Medicine & Medical Engineering
关键词
乘员舱
沸石5A分子筛
等温式
CO2吸附
crew module
zeolite 5A molecular sieve
isotherm equation
CO2 adsorption
