As the core equipment in industrial production, the distillation column realizes the efficient separation of substances through clever temperature control. During the distillation process, the light components are distilled from the top of the column, while the recombinant components are left at the bottom of the column. In order for the recombinant components to evaporate in the form of steam and be brought to the top of the column for separation, the bottom of the column needs to be heated. At the same time, in order to promote the condensation of light components, the overhead of the tower is cooled to maintain a low temperature.
However, the temperature distribution of the plates of the rectification column is not fixed. It is influenced by a variety of factors, such as the composition of the raw material, the operating conditions, and the structure of the tray. Therefore, we cannot generalize that the temperature at the bottom of the tower must be higher than the temperature at the top of the tower. In practice, the temperature settings for each section need to be determined according to the specific process conditions and equipment characteristics.
In short, the operation of the distillation column is a technically demanding job. It requires us to comprehensively consider various factors such as raw material composition, operating conditions, and tray structure, so as to ensure that the temperature setting of each part can not only meet the requirements of material separation, but also ensure the safe and stable operation of the equipment. For the operators engaged in this work, a wealth of knowledge and experience is essential, as well as the ability to adapt flexibly to specific situations.