Results 61 to 70 of about 14,645 (208)

Surface and antibacterial activity of synthesized nonionic surfactant assembled on

open access: yesEgyptian Journal of Petroleum, 2016
Herein, we synthesized a nonionic surfactant namely, tetradecanoate mercapto acetate polyethylene glycol. We investigate the assembling of the synthesized surfactant on different types of prepared nanoparticles using ultraviolet (UV) and transmission ...
E.M.S. Azzam, M.F. Zaki
doaj   +1 more source

CARBONACEOUS NANOSIZED SURFACTANT CARRIERS AND OIL-INDUCED VISCOELASTIC FLUID FOR POTENTIAL EOR APPLICATIONS [PDF]

open access: yes, 2018
This dissertation aims to advance the conventional tertiary oil recovery method, surfactant flooding process. Via injecting a finite slug of surfactant-only or mixture of surfactant/polymer solution into reservoir, surfactants are capable to dramatically
Chen, Changlong
core  

Enhanced carbon utilization and storage: An application of nonionic-based binary surfactant CO2 foam

open access: yesHeliyon
Mobility control of CO2 is important for effective subsurface utilization and sequestration of anthropogenic CO2 in depleted formations. This not only enhances oil recovery but also increases CO2 storage efficiency, addressing a key challenge for a ...
Ayomikun Bello   +6 more
doaj   +1 more source

Studies on the inhibitory effect of different surfactants on ammonium chloride corrosion [PDF]

open access: yesInternational Journal of Fluid Engineering
Corrosion of heat exchangers by ammonium chloride (NH4Cl) is a common occurrence in the refineries. A variety of methods have been adopted to prolong the service life of equipment in such circumstances, such as the use of various additives such as ...
Dexiao Fu   +5 more
doaj   +1 more source

Characterization and fabrication of nanoporous materials by template directed sol-gel methods [PDF]

open access: yes, 2008
This research project focussed on developing synthetic strategies to fabricate a variety of nanoporous materials ranging the full range of pore sizes from micro to macro using template assisted sol-gel routes.
Hant, Steven Michael
core  

Effects of nonionic surfactants on soil structure, soil properties and soil water flow

open access: yesGuan'gai paishui xuebao
【Objective】Nonionic surfactants are soil amendments that could modify water surface tension, alter soil repellency, and affect water flow and distribution in soil.
SHENG Feng, LI Zhongrun, ZHANG Bin
doaj   +1 more source

Preparation and surface active properties of oxypropylated diol monoesters of fatty acids with an amide oxime terminal group

open access: yesGrasas y Aceites, 1994
Locally produced non-edible oil, namely, rice bran oil (R.B.O.) was utilized as starting materials for preparing new nonionic surfactant. Oxypropylated diol monoesters of linoleic and rice bran oil fatty acids were prepared.
A. M.F. Eissa   +2 more
doaj   +1 more source

Selective removal of chlorinated organic compounds from lindane wastes by combination of nonionic surfactant soil flushing and Fenton oxidation

open access: yes, 2019
The extensive use of the organochlorine pesticide lindane in the second half of the 20th century generated large volumes of wastes over the world.
Domínguez Torre, Carmen María   +2 more
core   +1 more source

The Effect of Surfactant Chain Length and Type on the Photocatalytic Activity of Mesoporous TiO2 Nanoparticles Obtained via Modified Sol-Gel Process [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
Mesoporous amorphous and nanocrystalline titanium dioxide were prepared by simple and environmental friendly modified Sol-Gel method using cationic (C14TAB, C16TAB, C18TAB) and nonionic (Plantacare UP K55) surfactant as pore forming agent.
Sana Kachbouri   +2 more
doaj  

Estabilização da tensão superficial de soluções de poli(oxietileno) (PEO) em presença e na ausência dos surfactantes dodecilsulfato de sódio (SDS) e colato de sódio (NaC) [PDF]

open access: yes, 2004
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.Os tempos de estabilização da tensão superficial de soluções contendo o polímero poli(oxietileno) (PEO), em água destilada e em solução ...
RAUPP, Grasiele
core  

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