Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2008-05-13
2008-05-13
Raymond, Edward (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
C204S556000
Reexamination Certificate
active
07373276
ABSTRACT:
A method for quantitative evaluation of emulsion stability using Critical Electric Field (CEF) determinations over a range of conditions, such as a range of temperatures, demulsifier compositions, or demulsifier concentrations. The method includes determining the CEF for a series of emulsions that differ substantially only in their internal phase volume ratio. A plot of CEF values as a function of the inverse of the internal phase volume ratio is characterized by a linear slope. Using the slope, a theoretical CEF value can be determined by extrapolating to where the inverse of the internal phase volume ratio is about one. The slope for a given emulsion series is associated with the relative energy barrier to flocculation and the theoretical critical electric field for a given emulsion series is associated with the relative energy barrier to coalescence. Comparative studies are performed using this method.
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Champion Technologies Inc.
Charioui Mohamed
Raymond Edward
Streets Jeffrey L.
Streets & Steele
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