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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Interfacial area in gas-liquid Couette-Taylor flow reactor
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Interfacial area in gas-liquid Couette-Taylor flow reactor

机译：气液库埃特-泰勒流动反应器的界面面积

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摘要

In this study the specific interfacial area (gas-liquid) generated within a stirred tank and Couette-Taylor-Poiseuille flow (CTPF) reactor was determined for a range rotational speeds, and gas and liquid volumetric flow rates. The specific interfacial area was obtained experimentally using the oxidation sodium dithionite in alkaline solution. The specific interfacial area for a CTPF was found to be in range 700-1200 m(2) m(-3) over the range of operating rotational speed (0-3000 rpm), liquid flow rate (1 dm(3) min(-1)) and gas/liquid volumetric flow rates (0.5-2.0). Typically, the specific interfacial area obtained for the CTPF reactor was an order of magnitude higher than those obtained (in this study) for a stirred tank reactor. It was also found that the liquid phase mass transfer coefficient, calculated from the measured a(L) and using previously obtained k(L)a values, was of the order 10(-4) m s(-1), which was consistent for 2.5 mm diameter bubbles as calculated in this study. (C) 2003 Elsevier Inc. All rights reserved. [References: 24]
机译：在这项研究中，确定了搅拌釜和库埃特-泰勒-泊桑流（CTPF）反应器内产生的比界面面积（气-液），用于一定范围的旋转速度以及气体和液体的体积流速。使用碱性溶液中的连二亚硫酸钠氧化实验获得比界面面积。发现CTPF的特定界面面积在工作转速（0-3000 rpm），液体流速（1 dm（3）min（范围内）的范围内为700-1200 m（2）m（-3） -1））和气/液体积流量（0.5-2.0）。通常，CTPF反应器获得的比界面面积比搅拌釜反应器获得的比界面面积高（在本研究中）。还发现，由测得的a（L）并使用先前获得的k（L）a值计算出的液相传质系数约为10（-4）ms（-1）。如本研究计算，直径为2.5毫米的气泡。 （C）2003 Elsevier Inc.保留所有权利。 [参考：24]

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