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Specialty Chemistry Forums => Chemical Engineering Forum => Topic started by: Laobear on March 14, 2018, 06:42:18 AM

Title: Sour Gas Treatment
Post by: Laobear on March 14, 2018, 06:42:18 AM

I'm currently in my first year degree project
For sour natural gas of removing H2S by DEA:

1) what concentration of DEA should i use? Whats the effect of the concentration on the absorption of H2S.
2) For the regenerator , to regenerate the Rich-DEA back to the Acid Gas Removal Unit,
    a) what's the effeciency of the regenerator in stripping the H2S from the Gas?
    b) Whats the temperature i should use?

Title: Re: Sour Gas Treatment
Post by: billnotgatez on March 14, 2018, 07:22:39 AM

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Title: Re: Sour Gas Treatment
Post by: Laobear on March 15, 2018, 01:45:12 AM

I have attached my PFD which i had drawn using AutoCAD and the question for my project below. The question never mentioned that DEA was a solution. I had found literature reviews saying that DEA normally used around in the concentration range of 30-40% concentration. but i could'nt find the rate of absorption of H₂S by DEA at 50 degree celcius with only H₂S and no CO₂

Later the Rich DEA will be treated to regenerate back lean DEA , whats the amount of Lean DEA generated and what temperature should be suitable ?