Nonbiocidal control of microbiologically influenced corrosion using organic film-forming inhibitors

Book · Fri Nov 01 04:00:00 EST 1996

OSTI ID:382554

Enzien, M V; Wu, M M; Frank, J ^[1]; Pope, D H ^[2]

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1. Argonne National Lab., IL (United States)
2. BioIndustrial Technologies, Inc., Georgetown, TX (United States)

Microbiologically Influenced Corrosion (MIC) may be a factor in 15--30% of failures due to corrosion in all industries. Chemical treatments for mitigating and controlling MIC processes represent significant cost and environmental liability. Because regulatory pressure on the use of toxic biocides is increasing, more environmentally acceptable control measures must be developed. To that end, laboratory experimental test-loops (TLs) were used to test more environmentally acceptable treatment chemicals. Produced waters from natural gas production and storage fields were recirculated through TLs under anaerobic conditions. Carbon steel coupons exposed to TL fluids were quickly colonized by microorganisms. Coupons continuously exposed to a quaternary amine (QA) in TL fluids had very low surface colonization and lower corrosion rates than did control coupons. The biocidal effect of QA in TL fluids appeared to be minimal. Coupons dipped in QA solutions and then exposed to control TL fluids also showed lower colonization and corrosion rates than did control coupons. These results suggest that QA may prevent MIC by mechanisms other than killing bacteria and that treatments preventing surface colonization may persist longer than most biocides.

• OSTI ID: 382554
• Report Number(s): CONF-960389--
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
36 MATERIALS SCIENCE
AMMONIUM CHLORIDES
BACTERIA
BIOLOGICAL FOULING
CARBON STEELS
CHEMICAL ANALYSIS
CONCENTRATION RATIO
CORROSION INHIBITORS
CORROSION PROTECTION
EXPERIMENTAL DATA
NATURAL GAS INDUSTRY
PETROLEUM INDUSTRY
PH VALUE
PITTING CORROSION
QUATERNARY COMPOUNDS
WATER TREATMENT