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I don’t quite understand the working principle of the azeotropic tower. What is the role of the reboiler? Is it for gas lift? If so, then who is stripping whom? There is a condenser on the azeotropic tower; what is being condensed there? But there are also outlet pipes leading to the acid gas scrubber – what does this gas mainly contain? There’s also the methanol-water tower; at the top of this tower, it’s mainly methanol vapor – is water vapor present in that as well? And what drives the liquid used for cleaning the trays to tank B02? Thank you
I suggest you go over the principles of chemical engineering again!
After reading it, all I felt was chaos. Could you organize it before sending it again?
Hehe, I’ve been looking at it for ages without understanding it – can you spot the Luchi flowchart?
An azeotropic tower is used to remove azeotropes, which are substances in methanol that form azeotropes with methanol and have a roughly fixed boiling point. The principle of an azeotropic tower is the same as that of distillation, with the difference lying in the tower pressure and the distillation temperature.
The function of the azeotropic tower is to enable methanol and water to form an azeotrope, thereby removing light substances with a boiling point lower than that of methanol and water; it acts as a pre-tower in the distillation process. I’m not sure if what I’m saying makes sense – I hope the experts can give me some guidance!
The azeotropic tower is primarily used to remove oils from methanol-water mixtures, while the methanol-water tower facilitates complete separation of methanol from water. The comparison to the 6th floor is still quite appropriate
The process on this day involves the low-temperature methanol washing technology provided by Ruchi Company, which is used after the Ruchi reactor. The azeotropic tower is used to remove light components other than methanol and water, especially naphtha, as these components are not completely carried over to the azeotropic tower during the extraction process in B02. The tray cleaning liquid is delivered to B02 through pressure and potential energy; you can take a look at the layout on site – B02 is located at ground level. The methanol water tower is quite simple: it involves classic distillation processes such as feed, reflux, and stripping. Methanol vapor mainly refers to the gaseous state; it does not imply the presence of water vapor. Of course, there are control specifications at the tower top, usually keeping it below 1%.
Is there organic sulfur in this light component?
Are you referring to that type of extraction tower?
No, what I’m asking is whether there is organic sulfur in the vapor phase of the azeotropic tower