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Do not think rectification tower is a kind of tectonic and sophisticated equipment, actually it can be seen by simple cent into two parts, one part is beforehand rectification tower, still having one share is pressurization rectify tower, have distinct effect in reaction process severally.
From beforehand rectification tower begins to look, its main effect expression is at 3 o’clock, it is to pledge mixture medium light constituent is taken off on one hand except, for instance organic foreign matter and ester of armour of 2 armour aether, formic acid and deliquescent the synthetic gas in thick methanol; It is in order to adds extractive water on the other hand, take off divide except the light heat up in a steamer with close of methanol boiling point, and the methanol with depart and methanol adjacent boiling point, alkyl hydrocarbon in all boil content; Still have on one hand, still had pair of alcohol in all boil content has a part to take off the favorable effect that remove beforehand. And although pressurization rectify tower is done not have beforehand rectification tower so multipurpose, but it is not inferior also, can tell methanol constituent and water and heavy constituent depart, depart comes out and still can reduce water its as far as possible the content of organic foreign matter, make of the product make take chroma a few taller.