Hydrocarbons on top of water in sour water storage tank
Hydrocarbons on top of water in sour water storage tank
(OP)
We are planning to put 2 feet of hydrocarbons (say, diesel)on top of water in the very large sour water storage tank to minimize H2S vent. The tank will also be nitrogen blanketed. If I know the saturated H2S concentration in the hydrocarbons and the H2S concentration in sour water, then how often do I need to replace the hydrocarbons in the tank?
Please advise method of calculation.
Please advise method of calculation.





RE: Hydrocarbons on top of water in sour water storage tank
A better idea is to route the tank vent gas through a small amine absorber that uses lean amine from your main amine unit and returns rich amine to your main amine unit.
Milton Beychok
(Visit me at www.air-dispersion.com)
.
RE: Hydrocarbons on top of water in sour water storage tank