Search Results - "Harwell, H"

Silica Nanoparticle Wettability: Characterization and Effects on the Emulsion Properties by Weston, J. S, Jentoft, R. E, Grady, B. P, Resasco, D. E, Harwell, J. H

“…Recent interest in the use of nanoparticles in emulsion stabilization has driven increased efforts to understand how the characteristics of the particles…”
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Dispersion of Single-Walled Carbon Nanotubes in Aqueous Solutions of the Anionic Surfactant NaDDBS by Matarredona, Olga, Rhoads, Heather, Li, Zhongrui, Harwell, Jeffrey H, Balzano, Leandro, Resasco, Daniel E

“…The insolubility of single-walled carbon nanotubes (SWNT) in either water or organic solvents has been a limitation for the practical application of this…”
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Micellar interaction of binary mixtures of alpha olefin sulfonate and nonylphenol polyethylene glycol ethers: Length effects of ethylene oxide by Chen, Changlong, Wang, Shengbo, Tian, Wei, Wang, Shuoshi, Shiau, Bor-Jier, Harwell, Jeffrey H.

“…[Display omitted] The micellization behavior of binary surfactant mixtures constituted by an anionic surfactant, alpha olefin sulfonate (AOS), and a nonionic…”
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High Value and Long Life—Double Jeopardy for Tunas and Billfishes by Collette, B. B., Carpenter, K. E., Polidoro, B. A., Juan-Jordá, M. J., Boustany, A., Die, D. J., Elfes, C., Fox, W., Graves, J., Harrison, L. R., McManus, R., Minte-Vera, C. V., Nelson, R., Restrepo, V., Schratwieser, J., Sun, C.-L., Amorim, A., Peres, M. Brick, Canales, C., Cardenas, G., Chang, S.-K., Chiang, W.-C., Leite, N. de Oliveira, Harwell, H., Lessa, R., Fredou, F. L., Oxenford, H. A., Serra, R., Shao, K.-T., Sumaila, R., Wang, S.-P., Watson, R., Yáñez, E.

“…The first standardized, global assessment of these fishes, using Red List criteria, reveals threatened species needing protection. There is growing concern…”
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Disrupting Admicelle Formation and Preventing Surfactant Adsorption on Metal Oxide Surfaces Using Sacrificial Polyelectrolytes by Weston, Javen S, Harwell, Jeffrey H, Shiau, Benjamin J, Kabir, Mahfuz

“…The adsorption of anionic, cationic, and nonionic surfactants was measured on high-surface area silica and alumina nanoparticles when in the presence of the…”
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Hydrophilic–lipophilic deviation (HLD) method for characterizing conventional and extended surfactants by Witthayapanyanon, A., Harwell, J.H., Sabatini, D.A.

“…An accurate determination of the hydrophilic–lipophilic nature of surfactants plays an essential role in guiding the formulation of microemulsion with the goal…”
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Environmentally Friendly Vegetable Oil Microemulsions Using Extended Surfactants and Linkers by Do, Linh D., Withayyapayanon, Anuradee, Harwell, Jeffrey H., Sabatini, David A.

“…Microemulsion formation of triglyceride oils at ambient conditions (temperature and pressure) and without the addition of co-oil and/or alcohols is challenging…”
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Enhancing solubilization in microemulsions—State of the art and current trends by Salager, Jean‐Louis, Antón, Raquel E., Sabatini, David A., Harwell, Jeffrey H., Acosta, Edgar J., Tolosa, Laura I.

“…Along a formulation scan, solubilization is maximal when a bicontinuous microemulsion is in equilibrium with both oil and water excess phases in a so‐called…”
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Interfacial Properties of Extended-Surfactant-Based Microemulsions and Related Macroemulsions by Witthayapanyanon, Anuradee, Phan, Tri Thanh, Heitmann, Todd C., Harwell, Jeffrey H., Sabatini, David A.

“…Extended surfactants containing an intermediate-polarity spacer, such as polypropylene oxide, in between the hydrophilic head and the hydrocarbon tail are…”
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Net-Average Curvature Model for Solubilization and Supersolubilization in Surfactant Microemulsions by Acosta, Edgar, Szekeres, Erika, Sabatini, David A, Harwell, Jeffrey H

“…In this work, we propose a mathematical model to reproduce the solubilization, equivalent droplet radius, interfacial tension, and phase transitions of anionic…”
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Surfactant selection for enhancing ex situ soil washing by Deshpande, S., Shiau, B.J., Wade, D., Sabatini, D.A., Harwell, J.H.

“…Ex situ soil washing is commonly used for treating contaminated soils by separating the most contaminated fraction of the soil for disposal…”
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Linker-Based Bio-compatible Microemulsions by Acosta, Edgar J, Nguyen, Thu, Witthayapanyanon, Anuradee, Harwell, Jeffrey H, Sabatini, David A

“…In this work we have studied the formulation of bio-compatible microemulsions using lecithin as the main surfactant and bio-compatible linker molecules (hexyl…”
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Thermodynamics of mixed anionic/nonionic surfactant adsorption on alumina by Lopata, Jeffrey J., Werts, Kendall M., Scamehorn, John F., Harwell, Jeffrey H., Grady, Brian P.

“…Regular solution theory predictions (line) of mixed SDS/NP(EO) 10 surfactant adsorption (points) with no micelles. Calculated using β adm = −5.25 for all total…”
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Polymer-free viscoelastic fluid for improved oil recovery by Chen, Changlong, Wang, Shuoshi, Harwell, Jeffrey H., Shiau, Bor-Jier

“…•Oil-induced VES was identified within the Winsor III microemulsion domain.•VES provides both ultralow o/w IFT and mobility control in oil displacement.•Faster…”
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Expanded Salinity Window of Middle-Phase Microemulsions and Reduced Surfactant Adsorption by Hydrotrope by Yuan, Na, Wang, Shuoshi, Yu, Ying, Chen, Changlong, Shiau, Bor-Jier, Harwell, Jeffrey H.

“…Using surfactant blends to mobilize residual oil offers a promising technique for enhanced oil recovery (EOR) and surfactant-enhanced aquifer remediation…”
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In-situ CO2 generation for EOR by using urea as a gas generation agent by Wang, Shuoshi, Chen, Changlong, Shiau, Benjamin, Harwell, Jeffrey H.

“…•The effectiveness of applying urea as a gas generating agent in in-situ CO2 EOR is proved.•Urea shows better divalent cations tolerance than previously…”
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Using carbonaceous nanoparticles as surfactant carrier in enhanced oil recovery: A laboratory study by Chen, Changlong, Wang, Shuoshi, Kadhum, Mohannad J., Harwell, Jeffrey H., Shiau, Bor-Jier

“…[Display omitted] •Surfactant suspended nanoparticles exhibited very low adsorption in Ottawa sand.•Nanoparticles delivered and spontaneously released…”
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Isolated mechanism study on in situ CO2 EOR by Wang, Shuoshi, Li, Keren, Chen, Changlong, Onyekachi, Ogbonnaya, Shiau, Benjamin, Harwell, Jeffrey H.

“…•IFT reduction between crude oil and hydrolyzed/unhydrolyzed urea solution was measured.•The wettability alteration of in situ CO2 EOR was directly observed by…”
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In Situ CO2 Enhanced Oil Recovery: Parameters Affecting Reaction Kinetics and Recovery Performance by Wang, Shuoshi, Chen, Changlong, Li, Keren, Yuan, Na, Shiau, Benjamin, Harwell, Jeffrey H

“…In situ CO2 enhanced oil recovery (ICE) shows great potential for increasing oil field tertiary recovery. Instead of injecting liquid CO2 directly into the oil…”
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Design of extended surfactant-only EOR formulations for an ultrahigh salinity oil field by using hydrophilic lipophilic deviation (HLD) approach: From laboratory screening to simulation by Wang, Shuoshi, Chen, Changlong, Yuan, Na, Ma, Yixin, Ogbonnaya, Onyekachi I., Shiau, Benjamin, Harwell, Jeffrey H.

“…•The framework of HLD based chemical EOR formulation design is proposed.•The number of the trial and error experiments are minimized.•Proposed binary…”
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