在己内酰胺生产过程中，环己酮蒸馏塔的作用是利用环己酮与环己醇沸点差异，将二者分离。
The cyclohexanone column was used to separate cyclohexanol and cyclohexanone by the difference of their boiling points in production of hexanolactam.
本文复合夹点分析方法和分析原理，建立了低温蒸馏塔与冷冻系统热泵流程集成的优化方法。
Based on pinch analysis method and exergy principle, a new approach is developed to optimize the heat-pump integration between low-temperature distillation column and refrigeration system.
作为优选的实施方式之一，使用蒸馏塔将在上述脱水反应中生成的水与芳香烃类有机溶剂共沸除去。
As the one of the preferred embodiment, the method USES hog still to remove water and aromatic hydrocarbon organic solvent azeotropy generated in the dehydration reaction.
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