The name is absent

Chapter 5

phase is 8.3. Positions of sampling for residual water content measurement are

also shown in the figure.

N/В ratio 4.0

N/В ratio 0.7

Figure 5.15 24 h emulsion (solids-free) separation adding 200 ppm PRi to PR₆ at
80 ⁰C, pH 8.3

Based on bottle test, almost complete separation of oil and water could be
achieved without solids in emulsion, and no rag layer formed. For N/В ratio 4.0,
emulsion adding 200 ppm PR₄ to PR₆ have better separation results than others;
for N/В ratio 0.7, emulsion adding 200 ppm PR₆ to PR₅ have better separation
results than others. Residual water content in oil layer was measured in these
samples, sampling from the positions indicated in Figure 5.15.

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