Problems with desulfurization of recycled hydrogen
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How can the size of the recycle hydrogen desulfurization tower and the number of trays required for recycle hydrogen desulfurization in a gasoline hydrodesulfurization unit be estimated?
Generally, 20 trays are sufficient； The tower diameter is related to the amount of hydrogen and the amount of amine solution; based on the hydrogen sulfide content in the recycled hydrogen, it is necessary to first calculate the amount of amine solution required, and then determine the tower diameter using the calculation methods for floating valve trays.
Is hydrogen sulfide being released? What are the main components?
3# sapphire2004 is used to remove hydrogen sulfide
Float valves don’t work well; the solution tends to form bubbles, leading to overflow in the tower. Using MP trays or CJST trays provides more stability
Using the Aspen absorption tower model
The key aspects are generally not covered in training, so one doesn’t know how to use AspenPlus
The flow rate of the ammonia solution concentration should be determined based on the hydrogen sulfide content in the recycled hydrogen and the concentration of hydrogen sulfide after desulfurization.
The flow rate of the ammonia solution concentration should be determined based on the hydrogen sulfide content in the recycled hydrogen and the concentration of hydrogen sulfide after desulfurization.