Fuel gases from various operations in a refinery contain hydrogen sulphide (H2S). If this were burned directly, sulphur dioxide would be formed in concentrations well above international guidelines. The H2S is therefore typically removed by absorption in the liquid phase with a regenerable solvent. Commonly used absorbents are alkanolamines such as Monoethanolamine (MEA), Diethanolamine (DEA), or Methyldiethanolamine (MDEA). Amine regeneration is achieved through steam stripping with sour gas being routed to the Sulphur Recovery section.