Performance of selected materials in flue gas environment

Conference · Thu Dec 31 04:00:00 EST 1998

OSTI ID:352599

Ali, M ^[1]; Al-Beed, A A ^[2]

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1. Saudi Basic Industries Corp., Jubail Industrial City (Saudi Arabia)
2. Saudi Petrochemical Co., Jubail Industrial City (Saudi Arabia)

Severe corrosion was observed at the welds and heat affected zones (HAZ) of an alloy N10276 ejector at the company, in an environment containing flue gas and brine. The flue gas contains carbon dioxide, hydrogen chloride, chlorine, oxygen and nitrogen. When the flue gas combines with moving brine, it becomes extremely corrosive. To assess the corrosiveness in this environment, five welded alloy coupons including alloys N10276, N06022 together with titanium and zirconium samples were exposed in this environment for a period of twelve months. The results indicated that the most corrosion resistant materials in this environment were titanium and zirconium. The evaluation results are discussed in this paper. Subsequently the ejector was constructed out of zirconium R60702, which has been in service for more than 10 months. Inspection results indicate no significant corrosion has occurred.

• OSTI ID: 352599
• Report Number(s): CONF-980316--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
CORROSION
CORROSIVE EFFECTS
FLUE GAS
HEAT AFFECTED ZONE
INCINERATORS
INDUSTRIAL WASTES
NICKEL BASE ALLOYS
TITANIUM BASE ALLOYS
WELDED JOINTS
ZIRCONIUM BASE ALLOYS