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Amine-degradation products play no part in corrosion at gas-sweetening plants

Journal Article · · Oil Gas J.; (United States)
OSTI ID:6431098

Gas-sweetening units using diethanolamine (DEA) and methyldiethanolamine (MDEA) are occasionally subject to corrosion. Discounting the basic degradation products of DEA as the cause, researchers (1) confirmed the presence of formic, oxalic, and acetic acids in used amine solutions, (2) defined oxygen's role in forming these carboxylic acids, and (3) demonstrated that the acid contents of different units are about the same order of magnitude for both DEA and MDEA. In most cases, oxygen can be easily excluded from gas-treating units, especially in storage tanks, thereby limiting the formation of acid products.

OSTI ID:
6431098
Journal Information:
Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 80; ISSN OIGJA
Country of Publication:
United States
Language:
English