Chapter 3
Hence the velocity of the front can be obtained from profile measurement. As a
result Ofemulsion sedimentation, clean oil layer resides on the top, emulsion layer
is in the middle, and concentrated emulsion layer resides at the bottom.
Figure 3.22 shows the position of sedimentation front between concentrated
emulsion layer and emulsion layer of sample 1 (with solids and no PR5) as a
function of time. At time zero, the sedimentation front starts from the bottom of the
sample (-2 cm in Figure 3.16), and it moves upward with time. The front velocity
(dh∕dt) can be calculated by fitting the experimental data.
Figure 3.22 Front position sedimentation rate of emulsion sample 1
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