CH_4、C_2H_6、CO_2三组分共吸附系统的吸附穿透曲线预测

本文进行了CH_4、C_2H_6及CO_2在4A分子筛上吸附等温线及扩散系数的测定,并实测了此三组分共吸附系统的吸附穿透曲线.利用实测的单组分数据及溶液热力学方法预测了共吸附平衡,在此基础上用本文提出的计算方法预测了CH_4、C_2H_6及CO_2三组分其吸附系统的吸附穿透曲线.预测的结果与试验结果较好地吻合.最大的误差为0.781％.

THE PREDICTION OF BREAKTHROUGH CURVE IN THE COADSORPTION SYSTEM OF CH_4 , C_2H_6 AND CO_2

In this work the authors have measured the adsorption isotherm and the diffusion coefficient of CH_4, C_2H_6 and CO_2 on 4A molecular sieve. They have also measured the breakthrough curve of these components' mixture. Using the single component's data and the method of solution thermodynamics, the authors have predicted the coadsorption equilibrium of these components. On this basis and with the use of the method which is shown in the present work the authors have succeeded in predicting the brtaklhrough curve of CH_4, C_2H, and CO_2's coadsoption on 4A molecular sieve and the results fit quite to well the experimental results. The maximum error is equal to 0.781%.