A robust underwater superoleophobic aminated polyacrylonitrile membrane embedded with CNTs-COOH for durable oil/water and dyes/oil emulsions separation

Chemosphere ◽  
2022 ◽  
pp. 133535
Author(s):  
Liyun Zhang ◽  
Yi He ◽  
Pingya Luo ◽  
Lan Ma ◽  
Shuangshuang Li ◽  
...  
Keyword(s):  
Oil Water ◽  
Oil Emulsions ◽  
Polyacrylonitrile Membrane

Separation of asphaltene-stabilized water in oil emulsions and immiscible oil/water mixtures using a hydrophobic cellulosic membrane

Fuel ◽  
2018 ◽  
Vol 231 ◽  
pp. 297-306 ◽  
Author(s):  
Camila F. Medina-Sandoval ◽  
Jeferson A. Valencia-Dávila ◽  
Marianny Y. Combariza ◽  
Cristian Blanco-Tirado
Keyword(s):  
Oil Water ◽  
Oil Emulsions ◽  
Cellulosic Membrane

scholarly journals Preparation of Corn Oil/Water and Water/Corn Oil Emulsions Using PTFE Membranes.

1998 ◽  
Vol 4 (2) ◽  
pp. 164-167 ◽  
Author(s):  
Kanichi SUZUKI ◽  
Ikuhisa FUJIKI ◽  
Yoshio HAGURA
Keyword(s):  
Corn Oil ◽  
Oil Water ◽  
Oil Emulsions

Effect of Rheology Properties of Oil/Water Interface on Demulsification of Crude Oil Emulsions

2015 ◽  
Vol 54 (17) ◽  
pp. 4851-4860 ◽  
Author(s):  
Jun Tao ◽  
Peng Shi ◽  
Shenwen Fang ◽  
Keyi Li ◽  
Heng Zhang ◽  
...  
Keyword(s):  
Crude Oil ◽  
Water Interface ◽  
Oil Water ◽  
Oil Emulsions

scholarly journals Behaviour of hybrid inside/out Janus nanotubes at an oil/water interface. A route to self-assembled nanofluidics?

2016 ◽  
Vol 191 ◽  
pp. 391-406 ◽  
Author(s):  
P. Picot ◽  
O. Taché ◽  
F. Malloggi ◽  
T. Coradin ◽  
A. Thill
Keyword(s):  
Hydrophobic Surface ◽  
Continuous Phase ◽  
Internal Cavity ◽  
Water Interface ◽  
Natural Aluminosilicate ◽  
Oil Water ◽  
Self Assembled ◽  
Oil Emulsions ◽  
Chemical Groups ◽  
Inside Out

Imogolites are natural aluminosilicate nanotubes that have a diameter of a few nanometers and can be several microns long. These nanotubes have different chemical groups on their internal (Si–OH) and external (Al–OH–Al) surfaces, that can be easily functionalised independently on both surfaces. Here we show that taking advantage of the particular shape and chemistry of imogolite, it is possible to prepare inside/out Janus nanotubes. Two kinds of symmetric Janus nanotubes are prepared: one with an external hydrophilic surface and an internal hydrophobic cavity (imo-CH3) and one with an external hydrophobic surface and a hydrophilic internal cavity (OPA-imo). The behaviour of such inside/out Janus nanotubes at oil/water interfaces is studied. The OPA-imo adsorbs strongly at the oil/water interface and is very efficient in stabilising water-in-oil emulsions through an arrested coalescence mechanism. Imo-CH3 also adsorbs at the oil/water interface. It stabilises oil-in-water emulsions by inducing slow oil-triggered modifications of the viscosity of the continuous phase. The possible transport of small molecules inside the imo-CH3 nanotubes is evidenced, opening up routes towards self-assembled nanofluidics.

Switchable superlyophobic zeolitic imidazolate framework-8 film-coated stainless-steel meshes for selective oil–water emulsion separation with high flux

2020 ◽  
Vol 44 (32) ◽  
pp. 13534-13541
Author(s):  
Xin Gao ◽  
Qiang Ma ◽  
Zhengwei Jin ◽  
Pei Nian ◽  
Zheng Wang
Keyword(s):  
Stainless Steel ◽  
High Flux ◽  
Water Droplets ◽  
Oil Droplets ◽  
Zeolitic Imidazolate Framework ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water ◽  
Oil Emulsions

A switchable superlyophobic ZIF-8 membrane can selectively remove oil droplets in oil-in-water emulsions via superoleophobicity and water droplets in water-in-oil emulsions via superhydrophobicity.

Forecasting the viscosity properties of water-oil systems

2021 ◽  
pp. 109-115
Author(s):  
G.G. Ismayilov ◽  
◽  
F.B. Ismayilova ◽  
S.F. Musaev ◽  
◽  
...  
Keyword(s):  
Entire Range ◽  
Effective Viscosity ◽  
Water Saturation ◽  
Heterogeneous Systems ◽  
Engineering Practice ◽  
Saturation Degree ◽  
Oil Water ◽  
Oil Emulsions ◽  
Experimental Values ◽  
Range Of Variation

In article possibilities of predicting the viscosity of stable multicomponent water-oil systems in practice, when it is impossible, for a number of reasons, to obtain their experimental values, are considered. A predictive model is proposed to describe the change in the viscosity properties of various oil-water emulsions depending on the degree of water saturation. It is shown that the proposed formula allows to determine the effective viscosity of water-oil systems in the entire range of variation of the velocity gradient in the absence of experimental data and is acceptable for engineering practice. Keywords: viscosity; water-oil emulsions; matematical description; water saturation degree; heterogeneous systems.

scholarly journals Stabilization of Oil-Water Emulsions by Hydrophobic Bacteria

2004 ◽  
Vol 70 (10) ◽  
pp. 6333-6336 ◽  
Author(s):  
Loredana S. Dorobantu ◽  
Anthony K. C. Yeung ◽  
Julia M. Foght ◽  
Murray R. Gray
Keyword(s):  
Interfacial Tension ◽  
Bacterial Growth ◽  
Solid Particles ◽  
Bacterial Cells ◽  
Droplet Coalescence ◽  
Oil In Water ◽  
Emulsion Stabilization ◽  
Oil Water ◽  
Oil Emulsions

ABSTRACT Formation of oil-water emulsions during bacterial growth on hydrocarbons is often attributed to biosurfactants. Here we report the ability of certain intact bacterial cells to stabilize oil-in-water and water-in-oil emulsions without changing the interfacial tension, by inhibition of droplet coalescence as observed in emulsion stabilization by solid particles like silica.

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