Patent ID: 11857916
Assignee: EVONIK OPERATIONS GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B

Claim 15:
16. The process of claim 12, wherein said gas mixture is fed to the feed line of the device and wherein the fraction of gas recycled to the recycle feed point is controlled to maintain the relative humidity in the gas fed to the hydrogen sulfide adsorber or in the gas leaving the hydrogen sulfide adsorber within a preset range, and wherein:
a) the hydrogen sulfide adsorber in said device is arranged between the recycle feed point and said gas compressor;
b) the recycle conduit in said device comprises an additional connection to an additional recycle feed point located between said hydrogen sulfide adsorber and said gas compressor, and to at least one control valve for controlling the fraction of recycled gas passed to said recycle feed point and said additional recycle feed point;
c) the device comprises a measurement device for relative humidity on said feed line between the recycle feed point and the hydrogen sulfide adsorber or between the hydrogen sulfide adsorber and the additional recycle feed point, and a controller configured to operate said control valve to maintain the relative humidity within a preset range.