Are the methods for diesel hydrogenation and gasoline hydrogenation stripping different?
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Why is superheated steam used for stripping in diesel hydrodesulfurization towers, while a reboiler is used for stripping in gasoline hydrodesulfurization towers?
It seems there’s no difference in stripping towers; some use steam while others use reboilers. It depends on the design, I guess?
I use diesel hydrogenation; the components of gasoline might be too light, and using steam could vaporize all of the gasoline
Gasoline hydrodesulfurization also involves steam as well as reboilers; it depends on the actual conditions
This really depends on one’s design habits
On my end, the temperature in the gasoline hydrodesulfurization stripper is around 180 degrees, the top pressure is controlled at 0.3 MPa, and a reboiler is used for heating.