436869 Three Types of Filter Media Produced from Electrospun Cellulose Acetate (Cac)-Polystyrene (PS) Composite Membrane for Separating Oil-Water Mixtures

Wednesday, November 11, 2015: 12:50 PM
252A/B (Salt Palace Convention Center)
Lida Baghernejad1, Erin Iski1, Ovadia Shoham2, Ram S. Mohan3 and Seyi A. Odueyungbo4, (1)Chemistry, The University of Tulsa, Tulsa, OK, (2)Petroleum Engineering, The University of Tulsa, Tulsa, OK, (3)Mechanical Engineering, University of Tulsa, Tulsa, OK, (4)NMA-EGTL, Chevron Corporation, Richmond, CA

Three Types of Filter Media Produced from

Electrospun Cellulose Acetate (Cac)-Polystyrene (Ps)

Composite Membrane for Separating Oil-Water Mixtures

L. Baghernejad1 Chem., E. Iski2 Chem.

Department of Chemistry and Biochemistry

O. Shoham3, Department of Petroleum Engineering

R. Mohan4, Department of Mechanical Engineering

S. Odueyungbo5, Chevron Energy Technology Company

The University of Tulsa

Tulsa, Oklahoma 74104

(918) 812-7956



(261 Words)

Oil-water mixtures are encountered in many domestic, industrial and environmental activities and are often undesired and problematic. Particularly, oil-spills such as the sudden Mexican Gulf catastrophe have attracted tremendous interest towards the separation of oil-water mixtures. Membrane filtration is one of the most effective methods so far in separating oil-water mixtures. In this project, Cellulose Acetate (CAc) fibers were reinforced by Poly (styrene) (PS) fibers via co-electrospinning CAc and PS from one solution to produce a highly porous, nanofibrous and flexible composite membrane. Three types of filter media were developed from the electrospun CAc-PS membranes: 1) a hydrophobic-oleophilic filter medium (Filter #1), which separated oil from oil-water mixtures, 2) a hydrophilic-oleophobic filter medium (Filter #2), which separated water from oil-water mixtures and 3) a hydrophobic-oleophobic filter medium (Filter #3), which is expected to separate water and oil droplets from wet gas. These filter media were produced by heating and/or treating the electrospun CAc-PS membrane with two commercially available surfactants named PHOBOL-CP and ULTRAPHIL from the Huntsman-DuPont Textile Company. The filter media were characterized physically, mechanically and chemically. The filtration performances of the first two filter media were tested in a lab-scale batch filtration setup, while the performance of the third filter medium remains to be tested. These filter media are novel with respect to their material, structural topography and morphology, surface roughness and filtration performance. The uniqueness of these novel filter media can be attributed to their high reproducibility, scalability, low basis weight, flexibility, high separation efficiency (> 90%) and cost-effectiveness due to their abundant and cheap starting materials. In such terms, these filter media can compete with conventional filter media.

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See more of this Session: Fluid Particle Separation in Energy, Water and Environmental Systems
See more of this Group/Topical: Separations Division