Biogas upgrading Evaluation of methods for H S removal

– Iron oxides (iron sponge, SulfaTreat®, Sulphur–Rite®) – Zinc oxides – Alkaline solids Absorption/ Scrubbing – Water – No–water physical solvents (Selexol®) – Alkaline solutions – Zinc oxide slurries – Iron oxide slurries – Iron salts, chelated and no chelated (Lo–Cat®, SulFerox®, Sulfothane®)

  Sulfatreat