Performance of Plastic Waste-Based Polyionic Liquid toward the Dehydration of Crude Oil Emulsions

Figure 5

Microscopic photos of crude oil emulsion (50% of brine content) at 60°C (a) blank sample after two weeks, (b) sample containing 1,000 ppm of BTP–PIL after 100 min, and (c) sample containing 1,000 ppm of BTP–PIL after 150 min.