Method for retarding corrosion in petroleum processing operation using N-methyl pyrrolidone
AssigneeExxon Research & Engineering Co.
InventorEwa A. Bardasz
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Abstract
This invention is directed to a method of reducing the amount of corrosion resulting in a petroleum process operation wherein N-methyl pyrrolidone is utilized as one of the components by adding an effective corrosion inhibiting amount of an ester additive formed from a polycarboxylic acid and glycol or glycerol, preferably a dimer acid of linoleic acid and diethylene glycol.
Claims10
In a petroleum process operation wherein N-methyl pyrrolidone is used as one of the components in a hydrocarbon system, the improvement comprising adding an effective corrosion inhibiting amount of an ester additive formed from the combination of a polycarboxylic acid with glycol or glycerol to reduce the formation of corrosion.
Dependencies are inferred from the claim text.