Selective H₂S removal (FLEXSORB™)
ExxonMobil’s FLEXSORB technology enables customers to process increasingly sour gas streams while helping to meet stringent emission regulations and sulfur recovery objectives. The highly selective H2S removal process has been used in tail gas treating (TGT), acid gas enrichment (AGE) and high-pressure acid gas removal (AGR) units. The technology provides a cost-effective way to meet low H2S specifications while minimizing CO2 co-absorption.
The FLEXSORB SE technology is designed for the selective removal of H2S in the presence of CO2 and utilizes proprietary severely sterically hindered amines. The unique characteristics of the amine allow it to achieve high H2S cleanup selectively at low solvent circulation rates. This gas treating technology has been proven in over 100 commercial units worldwide and is considered the best available technology in many regions, enabling facilities to meet stringent emissions standards. FLEXSORB SE Plus can help to meet or exceed the World Bank Standard (WBS) SO2 emission limit of 150 mg/Nm3, equivalent to approximately 99.98% sulfur recovery efficiency (SRE).
- FLEXSORB SE is used for selective removal of H2S
- FLEXSORB SE Plus is used to meet ultra low H2S specifications (< 10 vppm) even at the low pressures.