Question regarding the blockage issue of the air cooling system in the desulfurization tower
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It has been recently discovered that one of the overhead coolers in our plant’s diesel hydrodesulfurization tower is blocked. Without removing it or introducing water, I would like to know what process can be used to clear it. :handshake
Increase the steam injection volume at the bottom of the tower without causing overpressure in it
1. Control the amount of water injected before air cooling at high temperatures to prevent insufficient washing earlier on from affecting distillation. 2. Monitor the properties of the raw material to ensure that there is no increase in nitrogen content. 3. Control the level at which light fractions are separated, to prevent water-containing light fraction oils from entering the distillation process
Slightly increase the top temperature of the tower； Reduce the hydrogen sulfide concentration in the circulating hydrogen of the reaction system ； Appropriately increase the water injection volume into the reaction system ； Shut down the clogged air-cooled motor.
What kind of tower is a diesel hydrodesulfurization tower? Is it the degassing tower for the light fraction oil in the hydrogenation unit?
What was said upstairs seems to be about the procedures to take after a blockage occurs, but these methods don’t seem to be very effective in clearing the blockage! :handshake