Ideas on the specific steps for performing vacuum distillation.
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Vacuum distillation can lower the boiling point of a substance. The vacuum distillation gas pipeline is connected to a condenser, which is in turn connected to a collection tank. Question: By opening the vacuum valve, reaching a certain level of vacuum and then closing it, a negative pressure is created within the distillation system, allowing distillation to take place. As the gas evaporates, the pressure inside the tank increases; subsequently, the gas is condensed into a liquid, causing the pressure to drop again. In this way, a negative pressure can be maintained continuously. Instead of keeping the vacuum valve open all the time, otherwise all the gas distilled out will be drawn away.
Steps: 1. Create a vacuum in the system. 2. Feed the system, raise the temperature, and activate the evaporator and cooler. 3. Once the tower temperature reaches the desired level, the light components will naturally emerge and cool down. 4. Discharge from the tower bottom. 5. If feeding is continuous, it is necessary to control the feeding speed and carry out proper preheating preparations for the heat exchanger in advance
:(You need to feed the material first, then apply negative pressure and raise the temperature; the negative pressure remains on throughout. . . . . If your material has a very low boiling point, putting it directly into a high vacuum can easily lead to flashing
What was said on the 3rd floor makes sense. Vacuum can be applied first even if the material’s boiling point is not high. Then feed it in. Whether to open the vacuum valve depends on whether the heating capacity and condensation rate of your system are matched. There is also air leakage in the system.