Info!
UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.

Comparing laboratory and plant data for MDEA/DEA blends. M.S. Du Part, P.C. Rooney and T.R. Bacon. Hydrocarbon Processing, April 1999, 78(4), 81--86.

Degradation of diethanolamine (DEA) and blends of DEA in methyldiethanolamine (MDEA) by CO2 is reviewed. Degradation reactions are illustrated. Laboratory corrosion tests using carbon steel coupons in autoclave experiments show that degradation is a function of temperature, CO2 partial pressure, and DEA strength. Plant data shows much less corrosion than that observed in laboratory experiments. This is because the latter use higher CO2 partial pressures. Metals such as Fe, Cr and Ni do not appear to affect corrosion rates. MDEA/DEA blends give acceptable degradation and corrosivity if CO2 loadings, solvent strength, and heat stable salt concentrations are maintained. 16 refs.

Abstract details


Journal title: Hydrocarbon Processing

Keywords: Corrosion

Subjects: Energy efficiency, Refining, Iron and steel, Heat

Please login to save this item