Effective UV-Induced Fluorescence Method for Investigating Interphase Mass Transfer of Single Bubble Rising in the Hele-Shaw Cell,Industrial & Engineering Chemistry Research

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Effective UV-Induced Fluorescence Method for Investigating Interphase Mass Transfer of Single Bubble Rising in the Hele-Shaw Cell
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-03-26 , DOI: 10.1021/acs.iecr.9b07106
Zhen Zhang ₁ , Huishu Zhang ₁ , Xigang Yuan ₁ , Kuo-Tsung Yu ₁

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To investigate gas–liquid interphase mass transfer from a bubble to liquid in a thin gap, an experimental setup was established based on an UV-induced fluorescence method using acridine as the fluorescer. The acridine can quantify effectively the deposited CO₂ in a liquid according to fluorescence intensity change. An image processing procedure was developed to obtain bubble contours and concentration wakes. The mean bubble rising velocities with respect to the bubble diameter were fitted, and a correlation was proposed. Nondimensional mass transfer flux was also calculated and compared with the results from classical Higbie and Frössling limiting models. The experimental method developed in this work is shown to have high sensitivity and low cost for characterizing the mass transfer of CO₂ from a bubble to the surrounding liquid.

中文翻译：

有效的紫外诱导荧光方法研究Hele-Shaw池中单气泡上升的相间传质

为了研究气隙间的气态相间质量从细缝隙中的气泡到液体的转移，基于a啶为荧光增白剂的紫外诱导荧光方法建立了实验装置。fluorescence啶可以根据荧光强度变化有效地量化在液体中沉积的CO ₂。开发了图像处理程序以获得气泡轮廓和浓度尾流。拟合了相对于气泡直径的平均气泡上升速度，并提出了相关性。还计算了无量纲的传质通量，并将其与经典Higbie和Frössling极限模型的结果进行了比较。这项工作中开发的实验方法显示出表征CO ₂传质的高灵敏度和低成本从气泡到周围的液体。

更新日期：2020-03-27

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