[Q&A] 2017.8.7
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What are the hazards of mist entrainment on operations? Answer: If the amount of mist entrained from the lower trays to the upper trays is 10 percent, the operation of the tower will become abnormal, with the result being an increase in the concentration of heavy components at the top of the tower and an increase in tower pressure. http://down.hcbbs.cc/attachment/forum/201706/10/203353z7y06fdo70r6eod0.jpg “My Technical Upgrades in the Coal Chemical Industry” in 2017 http://bbs.hcbbs.com/thread-1786290-1-1.html (Source: Haichuan Chemical Industry Forum) Event on Registered Chemical Engineers – Sharing of Experiences: “Learning from Others’ Experience” http://bbs.hcbbs.com/thread-1808158-1-1.html (Source: Haichuan Chemical Industry Forum)
If the amount of mist entrained from the lower tray to the upper tray is 10 percent, the operation of the tower becomes abnormal, with the result being an increase in the concentration of heavy components at the top of the tower and an increase in tower pressure.
If the amount of mist entrained from the lower tray to the upper tray is 10 percent, the operation of the tower becomes abnormal, with the result being an increase in the concentration of heavy components at the top of the tower and an increase in tower pressure.
Foam entrainment causes low-volatility liquids to enter liquids with higher volatility, reducing the efficiency of the tower plates and affecting product quality.
Appropriate mist entrainment is beneficial for operation, right?
If the amount of mist entrained from the lower tray to the upper tray is 10 percent, the operation of the tower becomes abnormal, with the result being an increase in the concentration of heavy components at the top of the tower and an increase in tower pressure.
Devices that cannot compress the liquid, such as subsequent compressors that have been damaged
Introducing low-volatility liquids into high-volatility liquids reduces the efficiency of the tower plates and affects product quality.
Mist entrainment on the tray causes backmixing of the liquid phase between the trays, which reduces the mass transfer driving force and lowers the tray efficiency. In severe cases, it can also cause flooding, so there is a certain limit on the amount of entrainment. Obviously, the formation of mist entrainment reduces mass transfer efficiency.
It will cause backmixing of the liquid phase between the plates, reducing the mass transfer driving force and thus lowering plate efficiency; in severe cases, it can even lead to flooding. It will reduce the mass transfer efficiency.