The name is absent

Demulsifier

Figure 5.18 shows bar diagrams of residual water/ solid content in oil layer
and solid distribution in different layers using 200 ppm demulsifiers PR₃ to PRe-
The red and black dashed lines show the desired residual water and solid content
in oil (2.0% and 0.9%, respectively). For the sample with N/В ratio adding 200
ppm PR₄, rag layer is too thin that solid fraction in rag layer is considered as zero.

100∣—.--------.----   ■        —

Oil layer
80                      ^r≡9 layer

И Bottom layer

Demulsifier

Demulsifier