Naphthenic acid corrosion inhibitor

Details Naphthenic acid corrosion inhibitor Naphthenic acid corrosion inhibitor

C - Chemistry, Metallurgy

10

G

C10G 7/10 (2006.01) C10G 9/16 (2006.01) C10M 135/10 (2006.01) C23F 11/10 (2006.01)

Patent

CA 2112513

ABSTRACT OF THE DISCLOSURE 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.

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