Methods for Evaluating Corrosivity of Crude Oil Feedstocks

A method for determining corrosiveness of naphthenic acid in a crude oil feedstock is provided. The method includes the steps of providing a crude oil feedstock containing naphthenic acid; contacting the crude oil feedstock with iron for a period of time at a sufficient temperature for the iron to r...

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Hauptverfasser:	KUSINSKI GRZEGORZ JAN, CHENG MICHAEL TUNG-HAI, BARNEY MONICA MICHELE, MIAO TONI ZHANG
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING METALLURGY ORGANIC CHEMISTRY PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A method for determining corrosiveness of naphthenic acid in a crude oil feedstock is provided. The method includes the steps of providing a crude oil feedstock containing naphthenic acid; contacting the crude oil feedstock with iron for a period of time at a sufficient temperature for the iron to react with the naphthenic acid, forming iron salts. Under sufficiently high temperatures, at least a portion of the iron salts decompose to form ketone, which can be quantified. Measurements of the ketone can be used to correlate with the amount of iron lost from corrosion given a certain level of naphthenic acid present, giving a measure of the corrosivity of crude oil feedstock.