变压吸附法分离H_2－CO_2气体混合物

SEPARATION OF H_2-CO_2 GAS MIXTURE BY PRESSURE SWING ADSORPTION PROCESSES

采用变压吸附法进行Ｈ２－ＣＯ２气体混合物的分离研究。通过对不同吸附剂的吸附性能比较试验，选取１３ｘ分子筛为本研究体系的吸附剂。在３塔变压吸附装置上进行了变压吸附过程试验；对不同的原料气组成，在不同的吸附压力、原料气量、再生压力、再生气量以及再生时间条件下，分别测定了变压吸附的动态吸附能参数；考察了这些参数对吸附分离过程的影响；得到了一些较为实用的工艺参数。用线性推动力模型对变压吸附的全过程进行了模拟，采用正交配置法对模型求数值解，较好地预测了实验结果。

The separation of H2-CO2 gas mixture by pressure swing adsorption(PSA)process wasstudied.The rules of adsorptive charactsristics for different adsorbents were investigated.Results showthst 13x zeolite is a good adsorbent in H2-CO2 system.The experiment of PSA process was carried outon three columns.The dynamic adsorptive prameters were determined at various feed gas rate,pressure,velocity and desorptive time.The effects of operational conditions on scparation were also studied.The results predicted by the Linear Driving Force model are in good agreement with the experimental data.