EFFECT OF THE FLUID SHEAR RATE ON THE INDUCTION TIME OF CO2-THF HYDRATE FORMATION

被引：14
|
作者：
Douieb, Selim [1 ,2 ]
Archambault, Simon [1 ]
Fradette, Louis [1 ]
Bertrand, Francois [1 ]
Haut, Benoit [2 ]
机构：
[1] Ecole Polytech Montreal, Dept Chem Engn, URPEI, Stn CV, POB 6079, Montreal, PQ H3C 3A7, Canada
[2] Univ Libre Bruxelles, TIPs, Ave FD Roosevelt 50,CP 165-67, B-1050 Brussels, Belgium
来源：
CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2017年 / 95卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
crystallization; gas hydrates; induction time; shear rate; Couette-Taylor; CARBON-DIOXIDE; CLATHRATE HYDRATE; PHASE-EQUILIBRIA; FLOW REGIMES; GAS; METHANE; NUCLEATION; CRYSTALLIZATION; KINETICS; CAPTURE;
D O I：
10.1002/cjce.22650
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A method that allows the effect of the fluid shear rate on the induction time of gas hydrate formation to be characterized was developed and applied to CO2-THF hydrate formation. The investigation of the effect of the application of a constant shear rate (50 to 300 s(-1)) to the liquid phase from which the hydrates are formed revealed that the mean induction time decreases significantly as the applied shear rate increases. This could primarily be attributed to a decrease in the time required for stable gas hydrate nuclei to be generated and to grow to a macroscopically detectable size. The induction time could also be significantly reduced by the application of a high shear rate (900 s(-1)) to the liquid phase for a relatively short, defined period of time.
引用
收藏
页码：187 / 198
页数：12
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