Regenerator circulation issue in LPG desulfurization regeneration tower
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Regarding the regeneration agent circulation issue in the LPG desulfurization regeneration tower, both the regeneration agent heat exchanger and cooler are located on the third and fourth platforms; there is no pump at the bottom of the regeneration tower. How can the regeneration agent and the raw regeneration agent be circulated as quickly as possible at the beginning of operation? That is, how to get the liquefied gas desulfurization system up and running as quickly as possible.
Excess N2 tends to affect the production of propylene from liquefied gas at the heel; if possible, it’s better to use liquefied gas fed back from the tank area for compression
We generally fill the regeneration tower with nitrogen to ensure the process can proceed smoothly
Retrograde nitrogen impingement, anterograde negative pressure aspiration
There is no such process for negative pressure extraction in the anterior approach.
If R801 is a pressurized vessel, a water ring vacuum pump system can be installed at the top opening, with the outlet connected to the flare line
Is there a cross-line connected to the liquid-rich flash tank for system pressurization?
According to your process diagram, P801 can directly draw the solution from the solvent tank; why can’t it be connected directly to the solvent pipeline? We had it in mind when designing it here!