کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
154524 | 456842 | 2016 | 5 صفحه PDF | دانلود رایگان |
• Visualization of mass transfer around Taylor bubbles in microreactor.
• Contributions of the bubble formation stage to the overall gas–liquid mass transfer.
• The enhancement by the recirculation in the gas bubble at the formation stage was studied.
• New insight into bubble mass transfer right after the formation stage.
• Basis for elaborating a complete model, accounting for the bubble formation stage.
The gas–liquid mass transfer occurring in Taylor flows right after the bubble formation stage were investigated in a flow-focusing microreactor. The colorimetric technique proposed by Dietrich et al. (2013) was used for locally visualizing and characterizing the gas–liquid mass transfer. Thanks to this method, the liquid-side mass transfer coefficients kL were measured at the moment right after the bubble is detaching from the gas film near the cross-junction of the microreactor. Experiments were carried out for several flow conditions (95.7
Journal: Chemical Engineering Science - Volume 143, 2 April 2016, Pages 364–368