Experimental and microscopic simulation study on CO2 diffusion in an oil-water liquid system

2021 ◽  
pp. 116950
Author(s):  
Wei Liu ◽  
Lin Du ◽  
Xin Luo ◽  
Wen Liu ◽  
Qian Sun ◽  
...  
Keyword(s):  
Simulation Study ◽  
Liquid System ◽  
Microscopic Simulation ◽  
Co2 Diffusion ◽  
Oil Water

Molecular Simulation Study of Oil-Water Two-Phase Fluid Transport in Shale Inorganic Nanopores

2021 ◽  
pp. 116948
Author(s):  
Wei Zhang ◽  
Qihong Feng ◽  
Zhehui Jin ◽  
Xiangdong Xing ◽  
Sen Wang
Keyword(s):  
Molecular Simulation ◽  
Simulation Study ◽  
Fluid Transport ◽  
Two Phase ◽  
Oil Water ◽  
Phase Fluid

Effect of surfactant headgroups on the oil/water interface: An interfacial tension measurement and simulation study

2013 ◽  
Vol 1052 ◽  
pp. 50-56 ◽  
Author(s):  
Jiafang Xu ◽  
Yang Zhang ◽  
Haixiang Chen ◽  
Pan Wang ◽  
Zhenhua Xie ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Simulation Study ◽  
Water Interface ◽  
Oil Water

The Simulation Study for Hydro-Meteorological Hazards Contingency Plan in Henan Highway Network

2012 ◽  
Vol 256-259 ◽  
pp. 2786-2789
Author(s):  
Yi Man Du ◽  
Jian Ping Wu ◽  
Ge Qi Qi
Keyword(s):  
Simulation Study ◽  
Traffic Safety ◽  
Simulation Models ◽  
Microscopic Simulation ◽  
Contingency Plan ◽  
Highway Network ◽  
Meteorological Hazards ◽  
Traffic Systems ◽  
Traffic Guidance ◽  
The Cost

The traffic safety in fog area along highway is a worldwide issue. Not only the cost of the injuries and deaths but also the cost of crash involvement by fog is quite large. The rationality and effectiveness of contingency plan for hydro-meteorological hazards is important on reducing the damage to traffic systems. Microscopic simulation models are now widely accepted as the most appropriate analytical tool for understanding traffic capacity problems and for assessing the effectiveness of ameliorative measures. Therefore, the authors have undertaken a simulation study to pre-evaluate the effectiveness of contingency plan in Henan highway network to ensure the effectiveness of traffic organization scheme under hydro-meteorological hazards in Henan highway network. This study illustrated how to assess the effectiveness of ameliorative measures using the microscopic simulation model. The results showed that real-time monitoring and dynamic traffic guidance can better enhance the efficiency of contingency plan.

Novel Solid Nanohybrids that Stabilize Oil/Water Emulsions and Catalyze Reactions at the Interface

2010 ◽  
Vol 1257 ◽  
Author(s):  
Jimmy Alexander Faria ◽  
Min Shen ◽  
Daniel E Resasco
Keyword(s):  
Water Solubility ◽  
Aldol Condensation ◽  
Liquid System ◽  
Water Interface ◽  
Proof Of Concept ◽  
Transition Metal Clusters ◽  
Selective Reaction ◽  
Potential Applications ◽  
Oil Water ◽  
Walled Carbon Nanotubes

AbstractA novel system has been developed to catalyze reactions at the oil/water interface of a biphasic liquid system. Stabilization of emulsions was accomplished through the use of nanohybrids composed of hydrophilic oxide particles and hydrophobic Single-Walled Carbon Nanotubes (SWNT), generated in the CoMoCAT process. These nanohybrids are inherently amphiphilic, and tend to adsorb at the interface of a biphasic water/oil liquid system. When enough energy is added to the system, these particles stabilize emulsions by suppressing the coalescence of the droplets and increasing the viscoelastic or pseudoplastic character of the liquid film between droplets. , Depending on contact angle of the particles at the liquid-liquid interface it was possible to stabilize water-in-oil or oil-in-water emulsions. The resulting emulsions are remarkably stable against coalescence and sedimentation, and can be easily separated by filtration or centrifugation, which make them suitable for applications in interfacial catalytic processes in which the catalyst can be easily recovered after reaction. Catalytic activity was imparted by transition metal clusters supported onto the nanohybrids. These metals selectively catalyze reactions at the Oil/Water interface. The proof-of-concept of the biphasic hydrogenation and condensation catalysis was obtained with three reactions of interest in biorefining. The first example was the hydrodeoxygenation of vanillin (4-hydroxy-3-methoxybenzaldehyde). The second example was the conversion of molecules that were exclusively soluble in the aqueous or the organic phase, like glutaraldehyde (water phase) and octanal (oil phase). In the third example we explored a tandem reaction sequence in which Pd-catalyzed hydrogenation was paired with a preceding Aldol-condensation of 5- methylfurfural and acetone. It was demonstrated that with these nanohybrids it is possible to selectively accomplish hydrodeoxygenation and condensation reactions at the water/oil interface of a biphasic system, followed by migration of the products to the oil phase. This contribution provides a proof-of-concept for a promising catalytic system with many potential applications in the liquid phase, such as bio-oil upgrading, production of specialty chemicals, and pharmaceutical applications in which selective reaction and product separations, based on water solubility can be desirable.

Measurements on CO2-diffusion through unusually resistive layers on oil—water interfaces

1984 ◽  
Vol 9 (1) ◽  
pp. 79-83 ◽  
Author(s):  
R.B. de Boer ◽  
S.L. Wellington ◽  
K.L. Tschiedel
Keyword(s):  
Co2 Diffusion ◽  
Oil Water

Numerical modeling of CO2 diffusion into water-oil liquid system using moving mesh technique

Fuel ◽  
2020 ◽  
Vol 261 ◽  
pp. 116426
Author(s):  
Wei Liu ◽  
Lin Du ◽  
Xiaoyuan Qin ◽  
Xingyi Chen ◽  
Wen Liu ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Liquid System ◽  
Moving Mesh ◽  
Co2 Diffusion ◽  
Mesh Technique
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