H2S Solubility in Brine 1

[buzzie]

Looking for information on the solubility of H2S in concentrated brines (30000 to 40000 TDS or so) or even seawater at temperatures in the range of 100 to 200 deg F and atmospheric pressure. Need to understand if saturation limit is depressed significantly in brine solution compared to pure water.

Regards

 

[siretb]

I would say not much. H2SO4 2.4% only slightly lowers the H2S solubility. I do not have any dat for brines, but I do not expect a huge impact.

 

[SJones]

If you can follow the maths, the following might be of some use:

Oil & Gas Science And Technology Rev IFP, Vol 60, 2005, No 2, pp339-355

Steve Jones
Materials & Corrosion Engineer

http://www.pdo.co.om/pdo/

 

[shahyar]

LnC= A1+A2(100/T)+A3Ln(T/100)+A4(T/100)+{S[B1+B2(T/100)+B3(T/100)^2]}
C: Solubility of H2S in water @1 atm in mol/kg
Ai and Bi: factors
T: Temperature in Kelvin
S: TDS in gr/L (eg. 30 or 40)
(Weiss 1971)
A1:-41.0563
A2:+66.4005
A3:+15.1060
A4:0
B1:-0.060583
B2:+0.0379753
B3:-0.0060234

(Ref: The physical Chemistry of Natural Waters Frank J. Millero Eq. 5.34)

I can't find any temperature range for that correlation.

Hope this help