Crude column overhead corrosion problems caused by oxidized sulfur species

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Mater. Performance; (United States)

OSTI ID:5432069

Schutt, H U; Horvath, R J

Accelerated corrosion experienced in the overhead system of an atmospheric crude distillation column has been analyzed to determine the cause of the corrosion occurring at temperatures above the aqueous dew point. The results of field monitoring tests, laboratory tests, and thermodynamic considerations confirm that the corrosion is caused by the deposition of hydrated ammonium bisulfate salts and/or condensation of sulfuric acid. This corrosion can be controlled by reduction of the concentration of sulfur oxides in the system, by the avoidance of operating conditions conducive to the formation of these corrosive species, and by the selective application of resistant alloy materials.

• Research Organization: Shell Development Co., P.O. Box 1380, Houston, TX 77251-1380 (US)
• OSTI ID: 5432069
• Journal Information: Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. 27:1; ISSN MTPFB
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
AMMONIUM COMPOUNDS
AMMONIUM SULFATES
BENCH-SCALE EXPERIMENTS
CHALCOGENIDES
CHEMICAL REACTIONS
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
DISTILLATION
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FIELD TESTS
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
SEPARATION PROCESSES
SOUR CRUDES
SULFATES
SULFUR COMPOUNDS
SULFUR OXIDES
SULFURIC ACID
TESTING
THERMODYNAMICS