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pH-stabilization in the Troll gas-condensate pipelines

Conference ·
OSTI ID:697052
 [1];  [2];
  1. Statoil Research Centre, Trondheim (Norway)
  2. Statoil, Bergen (Norway)
Iron from corrosion in two gas-condensate pipelines caused problems in the glycol regeneration units due to iron precipitation. Even if the amount of iron did not represent any significant corrosion problem in the pipelines, the solution to this problem was to reduce the corrosion rate by use of pH stabilization. NaOH was injected to achieve a pH value of 7.4 which reduced the iron content to 10 ppm. This corresponded to a maximum corrosion rate of less than 0.1 mm/year.
OSTI ID:
697052
Report Number(s):
CONF-990401--
Country of Publication:
United States
Language:
English

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