465094 Effect of Solid Particles on Interfacial Rheology and Transient Stability of Water-in-Oil Emulsions

Tuesday, November 15, 2016: 5:15 PM
Union Square 25 (Hilton San Francisco Union Square)
Ashwin Yegya Raman1, Jarred Kelsey2, Nicholas Briggs3, Jeff White2, Steven Crossley3 and Clint P. Aichele1, (1)School of Chemical Engineering, Oklahoma State University, Stillwater, OK, (2)Department of Chemistry, Oklahoma State University, Stillwater, OK, (3)School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, OK

Solid stabilized emulsions commonly occur in many industries, especially in the energy industry. Fundamental insight on the transient stability of concentrated emulsions stabilized using solid particles is critical to manage these processes. This work focuses on quantifying the relationship between the stability of emulsions and their associated interfacial properties. In this work, nuclear magnetic resonance (NMR) is utilized to characterize transient behavior of concentrated emulsions. A series of experiments are presented for model oils and well-characterized surfactants and solids in order to elucidate the impact of stabilizer type on dynamic emulsion behavior. A particular focus of the presentation is on the impact of silica and carbon nanotube stabilizers on dynamic emulsion behavior. Additional experiments were performed to investigate the effect of salinity on the transient stability of emulsions. Dynamic oil−water interfacial tension and interfacial rheological measurements using the oscillatory pendant drop method were performed to characterize the interfacial rheological properties of concentrated water-in-oil emulsions stabilized using solid particles and carbon nanotubes.

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See more of this Session: Emulsions and Foams II
See more of this Group/Topical: Engineering Sciences and Fundamentals