Peculiarities of rheological behavior of highly concentrated water-in-oil emulsion: The role of droplet size, surfactant, oil and ammonium nitrate content

2018 ◽  
Vol 272 ◽  
pp. 539-547 ◽  
Author(s):  
Kai-ming Zhang ◽  
Min-xiao Xu ◽  
Xue Hao ◽  
Hai-rong Zhao
2011 ◽  
Vol 383-390 ◽  
pp. 6151-6155
Author(s):  
Hong Jing Liu ◽  
Ying Zhang ◽  
Hui Yao ◽  
Wei Zhao

The purpose of the paper is to investigate propylene recovery by a new absorption system, namely water-in-oil emulsion absorbent. Water in oil emulsion, in which kerosene used as oil phase with dispersed water droplet, is prepared to be as absorbent to absorb propylene. The effect of volume fraction dispersed phase, dispersed droplet size, and the stirring rate on propylene absorption rate are researched. Experimental results indicate that the absorption rate of propylene can increase 20% compared with traditional absorption method. The volume fraction dispersed phase should be appropriate, otherwise the enhancement absorption can not be attained. The appropriate number is 0.05 for this dispersion. The smaller droplet size of dispersed phase as well as the faster stirring rate can increase the propylene absorption rate. The mechanism of enhancement propylene absorption is attributed to the intensive turbulence in boundary layer between gas and liquid due to the movement of dispersed water droplets.


2013 ◽  
Author(s):  
M. Al-Yaari ◽  
A. Al-Sarkhi ◽  
I. Hussein ◽  
M. Abbad ◽  
F. Chang ◽  
...  

2017 ◽  
Vol 19 (44) ◽  
pp. 29855-29861 ◽  
Author(s):  
Shirui Luo ◽  
Jarrod Schiffbauer ◽  
Tengfei Luo

In this work, the droplet size in a water-in-oil emulsion obtained by supersaturation is studied. The average size of water droplets in the emulsion is found to be proportional to the square root of the cooling rate.


2013 ◽  
Author(s):  
M. Al-Yaari ◽  
A. Al-Sarkhi ◽  
I. Hussein ◽  
M. Abbad ◽  
F. Chang ◽  
...  

1979 ◽  
Vol 1979 (1) ◽  
pp. 469-473
Author(s):  
Doug Cormack ◽  
Hugh Parker

ABSTRACT This paper describes experiments conducted with undiluted concentrate dispersants both in the laboratory and at sea which show that oil may be dispersed without the addition of artificial agitation. A description is given of trials over airfields, in which the appropriate droplet size was determined so that virtually all of the liquid discharged from the plane actually reaches the ground/sea surface. Experimental slicks were then laid at sea and the methods are described. These were treated by aircraft using the technique developed over the airfields. Results are presented on fresh crude oil (Kuwait, Ekofisk), topped Kuwait, and topped Kuwait water-in-oil emulsion. Experiments and results obtained with a Piper Pawnee and a DC-4 are included. Information is also presented on the logistics of aircraft use in spills offshore and close to shore with a view to giving as precise an evaluation as possible of the overall feasibility of aircraft dispersant operations.


2020 ◽  
Vol 856 ◽  
pp. 205-210
Author(s):  
Prakorn Kittipoomwong ◽  
Karn Panasuppamassadu ◽  
Monpilai Narasingha

Emulsification of water and fuel oil emulsion was experimentally investigated. The water-in-oil emulsion was produced with ultrasonic mixer and phase inversion concentration using a mixture of Span80 and Tween80 as emulsifiers. The emulsion was characterized by water droplet size, distribution and visual observation of microscopy photographs. Water in fuel oil emulsion prepared by phase inversion concentration was found to be similar to that prepared by the ultrasonic mixer in term of average droplet size and distribution


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