JEFFTREAT® MS-203

• Low heats of reaction
• High acid gas loading
• Minimal corrosivity
• Lower operating costs
• Increased process capability of existing equipment

JEFFTREAT® MS203 solvents (MS-201, MS-203, MS-205, MS-205LFG) are methyldiethanolamine (MDEA)- based formulated amines for bulk removal of hydrogen sulfide and carbon dioxide from gas and gas-liquid streams. These solvents are an effective alternative for many treating applications, including:

• Natural gases and gas liquids
• Refinery gases and gas liquids
• Coal and waste gasification gases
• Petrochemical gases and gas liquids                                               

Primary and secondary alkanolamines, such as monoethanolamine (MEA) and diethanolamine (DEA), have been used for many years in bulk acid gas removal. In recent years, formulated amines such as the JEFFTREAT® MS203 series solvents have gained popularity due to distinct performance advantages. JEFFTREAT® MS203 solvents should be considered as replacement solvents for gas and gas-liquid treating applications currently using primary or secondary alkanolamines. These formulated amine solvents offer the economic benefits of tertiary alkanolamines such as methyldiethanolamine (MDEA), and the treating capability to meet low carbon dioxide specifications even in the presence of significant amounts of hydrogen sulfide.

JEFFTREAT® MS203 is currently available in bulk quantities.

The handling and storage of JEFFTREAT® MS203 solvent presents no unusual problems.The properties and alkaline nature of JEFFTREAT® solvents should be considered when choosing materials of construction. JEFFTREAT® solvents should not be stored in tanks made from zinc, galvanized steel, or copper and its alloys since the solvent will react with copper to form complex salts. Also avoid the use of elastomers such as Buna N, VITON® elastomer, neoprene, and nitrile as these materials tend to swell when exposed to the amine. KALREZ® 1050 LF elastomer performs satisfactorily in amine service as well as materials made from polypropylene and TEFLON® elastomer. A carbon steel storage tank, constructed according to a recognized code, is generally satisfactory. Carbon steel transfer lines, joined by welds or flanges, are suitable. Screw joints are subject to failure unless back-welded. FLEXITALLIC® gaskets work well for flanged connections. For pumps, a Durametallic Type RO-TT mechanical seal or equivalent is suitable.

The product should retain its conformance to sales specifications for a period of at least two years after date of manufacture if the product is stored at less than 100°F in its undamaged, unopened, factory packaged container.