We present the results of experiments studying droplet coalescence in a dense layer of emulsion droplets using microfluidic circuits. The microfluidic structure allows direct observation of collisions and coalescence events between oil droplets dispersed in water. The coalescence rate of a flowing hexadecane-in-water emulsion was measured as a function of the droplet velocity and droplet concen...

A theoretical model is developed to consider the effect of demulsifier agent on demulsification of water-in-crude oil emulsion. A thermodynamic approach is considered to correlate the critical micelle concentration of a demulsifier to the collision frequency function in population balance equation (PBE). Based on the proposed correlation, the collision frequency function is modified to account ...

Oil-in-water (O/W) emulsion has been a major concern for the petroleum industry. A cost-effective magnetite-reduced graphene oxide (MRGO) nanocomposite was synthesized to study demulsification process of using said under solar illumination. Characterization data show that magnetite successfully deposited on reduced through redox reaction at varying loading amounts magnetite. Demulsification O/W...

Oily sludge belongs to the hazardous waste specified in national list. It will directly or indirectly threaten ecological environment and human health. This paper introduces advantages of chemical hot washing oily sludge. discusses main factors affecting treatment effect, Demulsification Mechanism research progress by thermal washing, puts forward some suggestions on future development directio...

HYW (Hong Yi Wu line) heavy oil emulsion in Xinjiang Oilfield (Karamay, China) is a kind of with high viscosity and emulsification. Its reaches 120,000 mPa·s at 40 °C. The has no demulsification. Even if the demulsification temperature 90 degrees, concentration demulsifier 260 mg/L. In this paper, new process thermochemical after blending studied. First, SE low-viscosity 640 water cut 90% was s...