H2S content in the rich and lean streams from amine solution regeneration
Thread Content
I read in the documentation that, regarding the amine solution regeneration process, it’s best to keep the mass concentration of H2S in the lean solution below 1 g/l. This is easy to understand – the lower the concentration, the better for the lean solution to absorb it. But I think there are also requirements for the rich liquid; the mass concentration of H2S in it generally should not exceed 9 g/l. Why are there requirements also for the rich liquid? I’m not quite sure; please explain, extra points for that
If the mass concentration of H2S in the rich liquid is high, regeneration will be difficult, right?
The hydrogen sulfide content in the rich liquid here varies greatly (between 3 and 9)
We have at most a little over 6, right? What pressure is required for the desulfurization tower at 9?
Do you mean that high stress is beneficial for absorption?
It should be advantageous, right? When I was looking for information, I saw that you mentioned 3-6 back in 2016. The sulfur content here isn’t high; it just fails the tests occasionally, and I’m also trying to find out why.
This year, the sulfur content of the crude oil purchased by the company is above 1%, and the sulfur content in the catalyst feed is above 1.3%. As a result, the hydrogen sulfide content in the products is high; does this mean that the hydrogen sulfide content in the corresponding rich liquid is also high?
Ugh, sulfur, nitrogen, and all that stuff are the worst – in the amine-rich liquid used in hydrodesulfurization, the hydrogen sulfide concentration can reach twenty or thirty, which is absolutely insane.
Absorption has a dynamic equilibrium that is related to problems and pressures. Rich amine solution absorbs sulfur, rather than dissolving it