I would like to ask about the factors that affect the liquid level in the alkylation flash tank
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What is the relationship between the coolant and effluent side levels in the alkylation flash tank and the pressure of the flash tank? If the processing capacity of the unit is increased, how will the liquid level change? (The compressor speed and anti-surge valve remain unchanged)
1. The pressure in the flash tank mainly depends on the non-condensable gases in the refrigerant and the speed of the compressor； 2. Increase processing capacity: with the compressor speed remaining unchanged, the liquid level on the refrigerant side decreases
What is the effect of pressure changes on the liquid levels on both sides?
What is the effect of pressure changes on the liquid levels on both sides?
The relationship between the liquid levels on both sides is not significant; it is mainly related to the feed composition, the isobutane circulation rate, and the refrigerant circulation rate. Next is the compressor load.
By reducing the speed, the pressure in the flash tank will rise slowly, which will result in a decrease in the vapor phase present; however, this is not the main factor affecting the liquid level! It mainly depends on the circulation volume of isobutane and the circulation volume of the refrigerant, as these have the most direct impact on the liquid levels on both sides!
Non-condensable gas, rotational speed, refrigerant temperature; this level has little to do with pressure