Amine Gas Sweetening HP

[mobek]

one of the units i designed using MDEA the regen tower bottom temp. was 128 C. @1.3 barg. The BP of MDEA is ~247 C.

Again, MDEA is the best amine for removing H2S but the worst for removing CO2. Why don't you consider a mix of amines or two treating stages?

Dear MOBEK,

have you any experience in amine treating unit using MDEA. Amine in simulation if amine units using MDEA. What is the degradation temperature for MDEA and which are the recommendations for MDEA about the working temperature.
Is there possibility that working to 3.5 barg to get a degradated amine solution because of high temperature.
I understood from you that MDEA is very selective for H2S, but unfortunately I didn't understand what is your opinion of MDEA solution regarding CO2. Could I reduce the content of CO2 from 30% mole up to max. 3 % mole using MDEA? What is your opinion?

About a mix of amine solution there is no problem to use it. I'm not mandatory on using specified amine solution.
Thank you mr. MOBEK for you attention

Kindly,
A.G.

[alex.gutu]

one of the units i designed using MDEA the regen tower bottom temp. was 128 C. @1.3 barg. The BP of MDEA is ~247 C.

Again, MDEA is the best amine for removing H2S but the worst for removing CO2. Why don't you consider a mix of amines or two treating stages?

Dear Sir Mobek,

Could you tell me please what type amine mixture would you recommend to me? I'll appreciate it very much and I'll try to use it in simulation to see what can I get using amine mixture.
If you don't mind you could recommend more than just one amine mix, in case I can't get what I expect with 1st amine mix.

Thank you Mobek.
Kindly,
A.G.

[mobek]

Hi alex.gutu,

You have to pick the right amine that removes CO2 and amine that removes H2S, their ratio in the mix depends on the stoichiometic calculations you make. I am sorry but my answer in forums is limited to giving key ideas rather than doing full calculations( see this example:

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Best of luck.
================================================

Dear Sir Mobek,

Could you tell me please what type amine mixture would you recommend to me? I'll appreciate it very much and I'll try to use it in simulation to see what can I get using amine mixture.
If you don't mind you could recommend more than just one amine mix, in case I can't get what I expect with 1st amine mix.

Thank you Mobek.
Kindly,
A.G.

[JoeRhoades]

We are having Amine treating unit in Texas for Gas Removal services we are doing works of lots of

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