Division of multi-feed rectification section and stripping section
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Above the feed plate of the rectification tower is the rectification section, and below it is the stripping section. So if there are 2 feeds with different tray layers, or more feeds, how to divide the distillation section and stripping section?
The upper section is the rectification section, the lower section is the stripping section, and the middle section is not so subdivided. Everyone calls them different names. It doesn’t matter. It’s just that everyone* Just get used to it.
The middle section is also called the rectification section, which also serves the purpose of refining. The bottom section is still the stripping section, which serves the purpose of stripping.