In Dalian University of Technology’s low-temperature methanol washing process, when is the pipeline to prevent ammonium carbonate crystallization used? How much to bet? What is the basis?
Thread Content
A beginner in purification – please give me some guidance. Thank you! !
Used when there is a high pressure difference in the vapor-gas heat exchanger. Open the gate valve on the anti-ammonium carbonate crystallization pipeline based on the pressure difference.
The ammonia line can be activated when the ammonia content in methanol is high
The pH value of the methanol after regeneration is analyzed regularly; if it is high, ammonia must be removed, or the shift water washing process must be intensified to eliminate ammonia from the gas