Make use of the difference of the volatile capacity of each component in the mixture, through the reflux of liquid and gas, make the gas and liquid two reverse multi-stage contact, under the constraint of the relationship of thermal energy driving and phase equilibrium, it makes volatile components (light components) transfer continuously from the liquid phase to the gas phase, while the volatile components migrate from the gas phase to the liquid phase, which makes the mixture separate continuously. This process is called rectification. In this process, the process of heat transfer and mass transfer is carried out at the same time, which belongs to the control of mass transfer process. Raw materials enter the tower from the appropriate position in the middle of the tower, and divide the tower into two sections. The upper section is the distillation section without feed, and the lower section contains feed plate as the retention section. The condenser provides liquid reflux from the...
Oct 13, 2022