The most common method of recovering sulphur from natural gas is the Claus process. To simulate the Claus process, I use Sulsim. This simulator enables one to design multistage Claus Processes to meet the various requirements needed to meet environmental specifications.

Shown here are simple two-stage Claus plants for 1 to 10 Tons of Sulphur removal. Plants, up to 20 tons, can be skid mounted packages. Larger plants, or plants requiring a higher level of sulphur removal, are normally grass roots facilities.

Other processes such as Sulfurox, an iron chealate process, can be used in place of an amine plant and a Claus plant. However, the suitability of these processes are limited due to the chemical costs and the narrow range of relative H2S/CO2 compositions that require no additional gas processing to meet specs.