Oil desalting by forming unstable water-in-oil emulsions

Details Oil desalting by forming unstable water-in-oil emulsions Oil desalting by forming unstable water-in-oil emulsions

2006-09-19

2006-09-19

Caldarola, Glenn (Department: 1764)

Mineral oils: processes and products

Refining

Metal contaminant removal

C208S003000, C208S004000, C208S005000, C208S039000, C208S044000, C208S115000, C208S187000, C208S188000, C044S301000, C044S370000, C204S567000, C507S103000, C516S160000, C516S161000

Reexamination Certificate

active

07108780

ABSTRACT:
A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight percent asphaltenes (A), total acid number (TAN), and ratio of the amount of naphthenic acids in the 450+ molecular weight to 450 molecular weight range (R); calculating an emulsion stability parameter, S=A+TAN*R; and determining whether the emulsion stability parameter, S, is greater than about 3; with a value above 3 being determinative of an emulsion more stable than one with a value less than 3.

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Stark, J.L. et al: “New method prevents desalter upsets from blending incompatible crudes”, Oil and Gas Journal, Pennwell Publishing Co. Tulsa, US, vol. 100, No. 11, (Mar. 18, 2002), pp. 89-91, XP001101619.

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