The phenomenon of conservatively perturbed-equilibrium (CPE) in multi-route catalytic reactions was studied in the plug-flow reactor (PFR). The following multi-route mechanisms were chosen for studying, i.e., the two-route mechanism with the single common intermediate, the three-route mechanism with some common steps, and the two-route mechanism with the single common step and two common intermediates. All mentioned mechanisms exhibit the CPE-phenomenon. At given rate coefficients, the mechanism with the single common intermediate showed the greater CPE-effect than the mechanism with the common steps. A special computer experiment was performed in which the kinetic characteristics of non-catalytic and catalytic reactions have been compared. In this experiment, both non-catalytic and catalytic reactions have the same overall-reactions with the given equilibrium constant. It was shown that the absolute values of extreme concentrations at the CPE-point are almost the same. In this case, it is possible to estimate the concentrations at the CPE-values for complex reactions based on similar characteristics of the corresponding simple ones.

中文翻译：

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多路线催化反应中的保守扰动平衡

在活塞流反应器 (PFR) 中研究了多路线催化反应中的保守扰动平衡 (CPE) 现象。选择了以下多路径机制进行研究，即具有单一公共中间体的双路径机制、具有一些公共步骤的三路径机制以及具有单一公共步骤和两个公共中间体的双路径机制。所有提到的机制都表现出 CPE 现象。在给定的速率系数下，具有单一共同中间体的机制显示出比具有共同步骤的机制更大的 CPE 效应。进行了一项特殊的计算机实验，比较了非催化反应和催化反应的动力学特征。在这个实验中，非催化反应和催化反应都具有相同的总反应和给定的平衡常数。结果表明，CPE 点的极端浓度的绝对值几乎相同。在这种情况下，可以根据相应简单反应的相似特征来估计复杂反应在 CPE 值下的浓度。