Chapter 3
bitumen (dilution ratio 2.4) in a flat-bottom glass tube (outer diameter 48 mm,
inner diameter 44 mm and length 230 mm) with a six-blade turbine [1] (Figure 3.8)
at ambient temperature. Stirring speed of the turbine is 3600 rpm and the mixing
time is 10 min.
6 mm
200 mm
D = 30 mm
w =(1∕5)D = 6 mm
t =(1∕4)D = 7.5 mm
d = (3∕4)D = 22.5 mm
AirZwater
interface
48 mm
Figure 3.8 Sketch of the mixer and emulsion preparation
Different emulsion samples (samples 1 to 4) were prepared as comparison to
study the effects of demulsifier, clay solids and wettability agent, as described in
Table 3.3. Here 200 ppm optimal demulsifier PR5 was used.
Table 3.3 Different emulsion samples for the measurement
|
Case |
Emulsion with solids |
Emulsion without solids |
|
Without demulsifier |
Samplel |
Sample 3 |
|
With demulsifier |
Sample 2 |
Sample 4 |
Study of the difference between samples 1 and 2, samples 3 and 4 can show
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