Wet H2S

[Falcon03]

Hello Everybody,

How I can define if such service is a wet H2S service? Is it as a function of partial pressure of H2S at given temperature and pressure?

What is the definition of Wet H2S service (wet sour gas)?

 

[gladkenn]

H2S is a chemical formula for Hydrogen Sulfide. I am not quite sure about the wet H2s you have describe. But I guess your hydrogen sulfide is contaminated with water.

 

[1969grad]

Most pipeline tarrifs limit H2S content to 0.25 grains per 100 SCF. Furthermore, if the H2S content exceeds this value then the receiving pipeline has the right to shut in the source which is serious business.

You might also check the applicable NACE spec (10????) for a definition. If the H2S content exceeds the value stated therein then you need to purchase all valves, meters, instrumentation, etc. with NACE trim.

Total sulfur is also limited but I do not remember the value now.

Water content is usually limited to 7 lbs/MMSCF in southern states and 4 in northern states. The pipeline tarrif will also state no free water. So if you have free water at your operating conditions then you have a wet gas.