Published: 07/03/2023
Published: 07/03/2023
Region
Middle East
Installation
Refinery
A Middle East operator planned to install four sour water buffer storage tanks featuring floating roof seals blanketed with N2 at an onshore export refinery. H2S builds up in the tank headspace and requires venting at regular intervals; gas is also vented in the event of a seal failure. In either case, the vent gas must be flared or treated. The operator wanted to avoid flaring the hazardous gas, so SLB proposed a fixed-bed system to treat the vented gas with nonhazardous SULFATREAT™ 410CHP hydrogen sulfide removal adsorbent. The adsorbent media removes H2S via a chemical reaction; product consumption depends only on the amount of H2S that passes through.