I am now working on a slug catcher piping, below are the conditions.
Top connection (sour gas):
H2S= 3 mol %, CO2= 6 mol % , Op. pressure: 620 psi
Bottom connection (Sour water)
H2S= 0.16%
CO2=0.1%
Now I am looking for a proper material for the bottom connection (sour water). Shall I consider the equilibrium gas condition (same condition of top sour gas connection) with the addition of dissolved chlorides for selecting the material?
The applicable standard is MR0175 as per requirements.
Please suggest.