Stress corrosion cracking of carbon steel in amine systems

Journal Article · Fri Jan 01 00:00:00 EST 1988 · Mater. Performance; (United States)

OSTI ID:5390619

Richert, J P; Bagdasarian, A J; Shargay, C A

NACE Task Group T-8-14 was formed by Group Committee T-8 on Refining Industry Corrosion to conduct a survey on stress corrosion cracking (SCC) of existing amine units. The main purpose of the survey was to determine the extent of cracking problems in such units and to examine possible correlations between cracked and noncracked locations to establish possible cause(s) for cracking. A total of 294 completed survey forms were received and analyzed. Cracking was reported in monoethanolamine (MEA), diethanolamine, methyldiethanolamine, and diisopropanolamine solutions but was most prevalent in MEA units. Cracking occurs in all types of equipment and piping operating at all common temperatures. Cracking has been reported in all typical refinery streams containing H/sub 2/S, CO/sub 2/, or a combination of the two. The use of corrosion inhibitors, soda ash, caustic, filters, or reclaimers has no indicated effect on cracking tendencies. The survey results confirmed that stress relieving is a highly effective means of preventing amine SCC.

• Research Organization: Kuwait Santa Fe Braun, P.O. Box 25161, 1312 Safat (KW)
• OSTI ID: 5390619
• Journal Information: Mater. Performance; (United States), Vol. 27:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
02 PETROLEUM
AMINES
CORROSIVE EFFECTS
CARBON STEELS
STRESS CORROSION
STRESS RELAXATION
ETHANOL
PROPANOLS
CORROSION RESISTANCE
CRACKS
DATA ANALYSIS
PETROLEUM REFINERIES
ALCOHOLS
ALLOYS
CHEMICAL REACTIONS
CORROSION
HYDROXY COMPOUNDS
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
ORGANIC COMPOUNDS
RELAXATION
STEELS
360105* - Metals & Alloys- Corrosion & Erosion
020400 - Petroleum- Processing