Evacuate the hydrogenation reaction system
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What is the purpose of evacuating air when the hydrogenation unit is started up?
It seems there were such posts before; give it a search. The main reasons are to save time, conserve energy, and achieve good results.
Reply to 3# Trace elements: That’s good. Performing vacuum pumping before system displacement helps to reduce the amount of nitrogen used, and it also allows for vacuum testing to check the airtightness of the system
Hehe, it’s just a guess of mine – our hydrogenation plant is about to be completed and put into operation
Before driving, the oxygen content in the high-pressure section must be below 0.5%, so nitrogen is used for displacement; evacuating the area is intended to reduce the amount of nitrogen required.