H2S CONTENT IN THE WATER AND H2S DISSOLVED IN THE GAS

[GabrieleB]

I'm working on a material selection study where I have to study a water with a content of 500ppm of H2S dissolved. Since I'm working with ECE software (De Waard and Milliams Model) that use the ppm dissolved in the gas phase. Is it possible to find a correlation beetween the H2S dissolved in the water and the one dissolved in the gas phase considering that the Gas is at 80 barg?
Thanks

 

[NBrink]

Should be able to use Henry's law

Constants for H2S in Water

 

[moltenmetal]

H2S dissolves in water by dissociation into H+ and HS- at least. Solubility therefore depends on pH (i.e. initial pH and buffering capacity), not just on partial pressure of H2S in the gas.

 

[SJones]

SPE paper 97576 might be of some assistance

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/pub/8/83b/b04

All answers are personal opinions only and are in no way connected with any employer.