Naphthenic acid corrosion inhibitor

Details Naphthenic acid corrosion inhibitor Naphthenic acid corrosion inhibitor

1992-12-30

1993-10-12

Stoll, Robert L.

Compositions

Preservative agents

Anti-corrosion

252395, 422 12, 106 1405, 208 47, 208263, C23F 1116

Patent

active

052522547

ABSTRACT:
Sulfonated alkylphenol is added to crude oil at 5 to 200 ppm to inhibit naphthenic acid corrosion of ferrous metal process piping and equipment in contact with the crude oil at naphthenic acid corrosion conditions. There are disclosed corrosion-inhibited hydrocarbon fluids, an improvement in hot hydrocarbon processing with sulfonated alkylphenol, a method for inhibiting naphthenic acid corrosion therewith, and a method for catalytically processing hydrocarbons with sulfonated alkylphenol to avoid catalyst poisoning by iron compounds.

REFERENCES:
patent: 2656380 (1953-10-01), Turner
patent: 4941994 (1990-07-01), Zetlmeisl et al.
Gutzeit, Materials Performance, pp. 24-35, Oct., 1977.
Piehl, NACE Corrosion 87 Meeting, Paper No. 196, Mar. 9-13, 1987.
Scattergood et al., NACE Corrosion 87 Meeting, Paper No. 197, Mar. 9-13, 1987.
Gustavsen et al., NACE Corrosion 89 Meeting, Paper No. 449, Apr. 17-21, 1989.

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