Used 4 TPD Sulferox Unit built in 1996. Used for removing sulfur by using Ferric Ion and Oxidation. Sulferox (Sul-Fer-Ox) is a reduction-oxidation (redox) process that converts Hydrogen Sulfide (H2S) gas within sour gas to elemental sulfur through reaction with aqueous Ferric Iron Fe(III). The SFX process forms solid sulfur particles that are removed by thickening and filtration of a small process stream. The filtrate is returned to the process for maximum process solution recovery. Sulfur conditioning chemicals are added to assist in sulfur section from the solution and elimination of foaming. The Sulferox process has three (3) steps: Absorption, Regeneration, and Sulfur Recovery.