What are the reasons why the temperatures in the middle and at the top of the solvent regeneration tower do not rise?
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What are the reasons why the temperatures in the middle and at the top of the solvent regeneration tower do not rise? Could it be that the backflow volume is high? But we can’t even see the amount of backflow here; the liquid level in the backflow tank and the opening degree of the valves are both perfectly stable
97°C, 86 at the middle, 88 at the top of the tower
The reasons are: low feed temperature； Excessive backflow ； The temperature at the bottom of the tower is low.
What is the temperature of the reboiler? The temperature of the reboiler here is 120, and that at the top of the tower is 112. At this temperature, the boiling point of water isn’t even reached; so how can anything rise above that?
The temperature at the base of the tower there is way too low, isn’t it?
Medium-pressure steam is mixed with low-pressure 0.3MP steam; the temperature at the bottom of the tower is between 123 and 125°C, while the pressure at the top of the tower is 0.075 MAP. The opening degree of the pressure control valve is around 55%. The volume of acidic gas is approximately 1300 cubic meters; in this case, the temperature at the top of the tower is only 90°C. There is no indication of the reflux volume either. The liquid level in the reflux tank is 34%, and it remains stable, showing a constant level. I’m not sure what the reason for this is
What are the design values for the processing volume and the steam consumption at the bottom of the tower? What are the current processing volume and steam consumption?
Processing volume: 62 t, steam consumption: around 5 t, circulation volume: 75 t