Where is the material export?
Thread Content
This post was last edited by liaifeng on 2020-6-2 19:06 An independent reboiler is installed at the bottom of the distillation tower. So, does the material outlet of the column kettle come from the reboiler outlet or from the bottom of the tower? ?
Or how to choose the two exit locations, what are the advantages and disadvantages? Newbie asking for help, encountering difficulties in graduation project
It depends on the needs of your rear process. Some materials require rear heat exchange. At this time, you can heat them in the reboiler and use them as discharge materials to exchange heat with the oil products that need to be heat exchanged at the rear. On the contrary, it can be used as material after heat exchange, cooling and then exiting the device. Analyze specific issues in detail and not generalize, so that you will understand the original intention of the design. :victory: The above opinions are for reference only!
There is another preheater connected to the pipeline at the back, so I can just change it to discharging material at the bottom of the tower. In the subsequent process, there are basically special preheaters or no need to continue heating. Can the master tell me the main advantages and disadvantages of choosing these two outlets? :P
I said, it depends on the needs of the subsequent process. As for the advantages and disadvantages, we can only talk about them in general terms, such as saving energy and reducing consumption, optimizing processes, reducing investment, etc.
The reboiler is only for cyclic heating. The material is heated and vaporized by the reboiler. The gas moves to the top of the tower. The components go out from the middle. The light components go out from the top. Only the things that cannot be evaporated will go to the bottom of the tower and be drained.