Mercaptans are undesired components of natural gas. Mercaptans cause odour and can pose operational challenges for acid gas removal, sulfur removal, and LNG units. Sorbead HRU technology removes mercaptans together with water and heavy hydrocarbons.
BASF Molecular Sieve technology selectively removes mer captans based on 5A and 13X. Before recycling to the feed, the mercaptans enriched regeneration gas is typically further treated in a solvent based purification process.