Results 221 to 230 of about 255,817 (279)
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Surfactant-Enhanced Remediation of Polycyclic Aromatic Hydrocarbons: A Review
Journal of Environmental Management, 2017Polycyclic aromatic hydrocarbons (PAHs) are toxic, mutagenic and carcinogenic organic compounds that are widely present in the environment. The bioremediation of PAHs is an economical and environmentally friendly remediation technique, but it is limited because PAHs have low water solubility and fewer bioavailable properties.
Ranjan Sarukkalige
exaly +5 more sources
Suspect Screening of Hydrocarbon Surfactants in AFFFs and AFFF-Contaminated Groundwater by High-Resolution Mass Spectrometry [PDF]
Environmental Science & Technology, 2019 Aqueous film-forming foams (AFFFs) are proprietary mixtures containing hydrocarbon surfactants and per- and polyfluoroalkyl substances (PFASs) that are used to extinguish hydrocarbonbased fuel fires.
Christopher P Higgins +2 more
exaly +7 more sources
Micellization of Hydrocarbon Surfactants in Supercritical Carbon Dioxide
Journal of the American Chemical Society, 2001Julian Eastoe +2 more
exaly +4 more sources
The Journal of Physical Chemistry, 1983
The mutual solubility limits, xA and xB, of a nonionic fluorocarbon surfactant (NFE) and dodecyl polyoxyethylene glycol ether (DEm) and of an anionic fluorocarbon surfactant (NF) and sodium alkyl sulfate (SAS) in micelles are determined by the surface tension method as a function of temperature.
Noriaki Funasaki, Sakae Hada
openaire +1 more source
The mutual solubility limits, xA and xB, of a nonionic fluorocarbon surfactant (NFE) and dodecyl polyoxyethylene glycol ether (DEm) and of an anionic fluorocarbon surfactant (NF) and sodium alkyl sulfate (SAS) in micelles are determined by the surface tension method as a function of temperature.
Noriaki Funasaki, Sakae Hada
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Journal of Molecular Liquids, 2019
Abstract The phosphorus-based cationic surfactant dodecyltriphenylphosphonium bromide (C12TPB) was systematically evaluated for its interfacial activity by the interfacial tension (IFT) measurement and emulsification experiments. Interestingly, the C12TPB molecules exhibited the differential interfacial activity in the water/hydrocarbon systems ...
Han Jia +9 more
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Abstract The phosphorus-based cationic surfactant dodecyltriphenylphosphonium bromide (C12TPB) was systematically evaluated for its interfacial activity by the interfacial tension (IFT) measurement and emulsification experiments. Interestingly, the C12TPB molecules exhibited the differential interfacial activity in the water/hydrocarbon systems ...
Han Jia +9 more
openaire +1 more source
Hybrid fluorocarbon/hydrocarbon surfactants
Current Opinion in Colloid & Interface Science, 2005Abstract In this review, the latest research on surfactants having both a fluorocarbon chain and a hydrocarbon chain in their molecules, namely hybrid surfactants , is described. Novel anionic, cationic and nonionic surfactants have been recently synthesized. Anionic hybrid surfactants with an ethylene spacer, F(CF 2 ) m C 2 H 4 CH(OSO 3 Na)(CH 2 )
Y KONDO, N YOSHINO
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Solubilisation of hydrocarbons in surfactant monolayers
Journal of the Chemical Society, Faraday Transactions, 1990Hydrocarbons which do not spread macroscopically on aqueous surfactant solutions can nevertheless be incorporated (solubilised) in the adsorbed surfactant films, producing mixed monolayers. The surface concentration of alkane in these systems can be obtained semi-quantitatively from the lowering of surface tension caused by the solubilisation.
Robert Aveyard +2 more
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Incorporation of hydrocarbons into surfactant monolayers
Advances in Colloid and Interface Science, 1990Abstract Alkane incorporation into close-packed surfactant monolayers at oil-water interfaces can greatly influence the surface concentration of surfactant, depending on the chain length of the alkane. Such incorporation into monolayers stabilising microemulsion droplets in Winsor systems (microemulsions in equilibrium with excess of the dispersed ...
R. Aveyard +3 more
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Impact of Surfactants on Hydrocarbon Mobility in Shales
SPE Reservoir Evaluation & Engineering, 2020SummaryUnconventional reservoirs such as Wolfcamp and Eagle Ford formations have played an important role in boosting the oil and gas production in the United States, but unfortunately, primary recovery from these reservoirs seldom exceeds 10%. Thus, operators are exploring enhanced oil recovery (EOR) techniques such as miscible gas injection (huff ‘n’
Ishank Gupta +2 more
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