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为了深入理解协同吸附过程的色谱规律,运用特征线法分析了双组分协同吸附色谱的3种不同类型,构造了饱和过程和洗脱过程的浓度波动图像,并与竞争吸附色谱过程做了比较.结果表明,协同吸附色谱过程的熵条件与竞争吸附情况下有很大不同;对于双组分协同吸附的3种不同类型,当强吸附组分具有或强弱吸附组分都具有协同吸附效应时,可以由特征线法得到解析解;当只有弱吸附组分具有协同效应时,色谱方程为混合型方程,特征线法失效;对饱和过程和洗脱过程的分析表明,协同效应不改变组分的分离顺序,但改变了熵条件,使得浓度波性质和波动图像随之改变.
In order to further understand the chromatographic rules of synergistic adsorption process, three different types of two-component synergistic adsorption chromatography were analyzed by the characteristic line method, and the concentration fluctuation images of the saturation process and the elution process were constructed and compared with the competitive adsorption chromatographic process The results show that the entropy conditions of the syngas adsorption chromatographic process are quite different from those under the competitive adsorption conditions. For the three different types of two-component synergistic adsorption, when the strong adsorption component has strong or weak adsorption components, , The analytic solution can be obtained by the characteristic line method. When only the weakly adsorbed components have a synergistic effect, the chromatographic equation is a mixed equation and the characteristic curve fails. The analysis of the saturation process and the elution process shows that the synergistic effect does not change However, the entropy condition is changed, which makes the nature of the wave and the fluctuating image change.