Corrosion inhibiting compositions to mitigate corrosion in environments containing elemental sulfur and/or polysulfides
AssigneeEcolab USA Inc.
InventorJeremy Moloney
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Abstract
A corrosion inhibiting composition is provided which comprises a salt of a fatty acid-amine condensate and an aromatic solvent. The composition can be used in reducing, inhibiting or preventing corrosion of a metal surface used in recovery, transportation, refining or storage of a hydrocarbon fluid containing elemental sulfur or polysulfide.
Claims28
A corrosion inhibiting composition comprising a salt of a fatty acid-amine condensate and an aromatic solvent.
A corrosion-inhibiting composition comprising:
- from about 2 to about 30 wt. % of a salt of a fatty acid-amine condensate;
- from about 1 to about 40 wt. % cationic surfactant;
- from about 1 to about 40 wt. % substituted aromatic amine;
- from about 1 to about 30 wt. % phosphoric acid ester;
- from 0 to about 20 wt. % solvent stabilizer compound;
- from 0 to about 5 wt. % demulsifier;
- from 0 to about 15 wt. % organic sulfur compound;
- and
- from about 40 to about 80 wt. % aromatic solvent.
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-27. (canceled)
The method of claim 27, wherein the composition is added to the hydrocarbon fluid at a concentration of about 500 to about 100,000 ppm.
-30. (canceled)
Dependencies are inferred from the claim text.