Upgrading Sour Gas by CRS

Shown on scale is a design schematic of a plant based on the two-step CRS process to upgrade natural gas contaminated with 27% H2S and 14% CO2. The plant can handle 100 MMSCFD (124.000 Nm3hr-1 ) which is typical for medium sized gas fields. Compared to conventional methods of Amine scrubbing and Cryogenic Distillation the plant is 100 times smaller in volume. It can be further reduced in size by applying plate heat exchangers. CRS-based plants cost less and consume little energy despite high H