Dynamic control behavior analysis for the new partially heat-integrated side-stream pressure-swing distillation arrangement is performed with the demonstrating examples of separating a minimum-boiling ethyl-acetate/ethanol azeotrope and a maximum-boiling ethylenediamine/water azeotrope. The snowball effect is observed in these systems. The contribution of this paper is to develop some novel robust and effective control schemes to eliminate or attenuate this effect for these processes. The stable regulatory control is achieved with the dual-product composition held close to their steady-state design specifications when handling the large step changes in throughput and feed composition. The feature control loops of these novel control schemes are that the flowrate in the azeotropic recycle loop from high-pressure column is, respectively, used to control the level in reflux drum and column base of low-pressure column for the minimum- and maximum-boiling azeotropes.

对新的部分热集成的侧流变压蒸馏装置进行了动态控制行为分析，并以最小沸腾的乙酸乙酯/乙醇共沸物和最大沸腾的乙二胺/水共沸物分离为例。该雪球在这些系统中观察到效果。本文的贡献是开发了一些新颖的鲁棒而有效的控制方案，以消除或减弱这些过程的这种影响。当处理产量和进料组成的较大变化时，通过将双产品组成保持在接近其稳态设计规格的状态，可以实现稳定的调节控制。这些新颖的控制方案的特征控制回路是，高压塔的共沸循环回路中的流量分别用于控制低压塔的回流塔和塔底的液位，以达到最小和最大流量。沸腾的共沸物。