Method for improving oil desalting by forming unstable...

Details Method for improving oil desalting by forming unstable... Method for improving oil desalting by forming unstable...

2008-01-29

2008-01-29

Wallenhorst, Maureen M. (Department: 1743)

Chemistry: analytical and immunological testing

Lubricant, grease, mineral oil, hydrocarbon oil product, or...

C436S161000, C436S174000, C436S175000, C436S177000, C422S069000, C422S070000, C210S656000, C210S702000, C208S25100H, C208S187000, C208S188000, C044S301000

Reexamination Certificate

active

07323342

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 fraction of the oil that is most strongly adsorbed on a silica gel column successively eluted with n-hexane, toluene and methylene chloride-methanol mixture solvents and determining whether said weight fraction is greater than about 0.05; with a value above 0.05 being determinative of an emulsion more stable than one with a value less than 0.05.

REFERENCES:
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patent: WO 00/50541 (2000-08-01), None
patent: WO 03/087263 (2003-10-01), None
Stark, J. L., et al.: “New Method Prevents Desalter Upsets From Blending Incompatible Crudes” Oil & Gas Journal, Pennwell Publishing Co. Tulsa, US, vol. 100, No. 11, Mar. 18, 2002, pp. 89-91, XP001101619.

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