Issues with the NHD regeneration tower
Thread Content
In the NHD desulfurization process, NHD heating is used for regeneration in the distillation tower. Does the regeneration tower come equipped with its own condenser? Is its own cooling capacity 0, relying on return water for cooling? Is the reflux water the one added from the top of the tower, or is it that other portion?
I have another question: the temperature of the gas leaving the top of the regeneration tower is not actually between 103 and 107 degrees; it’s around 126 degrees. It is only because a portion of the top of the regeneration tower is still used for acid gas washing that the gas exiting the top of the regeneration tower is cooled to 106 degrees before leaving the tower. I’m not sure if this way of expressing it is correct; please advise, experts! Thank you
It is mainly about the water content in the control system； Wash away the NHD mist entrained in the acid gas. Recycle heat and NHD liquid. The tower top temperature corresponds to the boiling point of water at that pressure.