1. Types and shapes of fillers: Different types of fillers have different separation effects on the mixture. The larger surface area and volume of packing can improve the mass transfer effect between alcohol and water, and then improve the ethanol recovery rate.
2. State in the tower: Factors such as temperature, pressure and ethanol concentration will affect the recovery efficiency. Lower working temperature and pressure can improve the adsorption and desorption speed between ethanol and water molecules, and then improve the extraction efficiency of ethanol. In addition, increasing the concentration of ethanol in the stock solution can also improve the recovery rate.
The recovery rate of ethanol is influenced by many factors, which are interactive. The recovery rate of ethanol can be improved by selecting appropriate packing, adjusting appropriate working temperature and pressure, appropriate feeding speed and flow rate, and appropriate tower height.