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연속 조작 기표탑에서 부유 기포분쇄물질이 기체 체류량, 축방향분산 및 물질전달에 미치는 영향
Effect of Floating Bubble Breakers on Gas Phase Holdup, Axial Dispersion and Mass Transfer in Continuous Bubble Columns
HWAHAK KONGHAK, October 1990, 28(5), 560-567(8), NONE
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Abstract
연속 조작 기포탑에 부유 기포분쇄 물질을 첨가한 경우와 첨가하지 않은 경우의 기체 체류량, 액상 축방향 분산계수 및 기-액 부피물질전단계수를 측정하였다. 기체 및 액체유속과 부유 기포분쇄 물질의 첨가량이 기체 체류량, 연속 액상의 축방향 분산계수 및 기-액 부피물질전달계수에 미치는 영향을 결정하였다. 기체 체류량와 부피물질전달계수는 연속 조작 기포탑에 부유 기포분쇄 물질을 첨가함에 따라 각각 13%와 25%까지 증가하였으며, 액상의 축방향 분산계수는 감소하였다. 기체 체류량, 액상의 축방향 분산계수 및 부피물질전달계수를 실험변수에 의하여 각각 correlation하였다.
The effects of gas and liquid velocities and the added volume fraction of floating bubble breakers on gas phase holdup, axial dispersion coefficient of liquid phase and gas-liquid volumetric mass transfer coefficient have been determined in continuous bubble columns with and without floating bubble breakers. The gas phase holdup and volumetric mass transfer coefficient increase up to 13.0 and 25.0% respectively, and the axial dispersion coefficient of liquid phase decreases with the addition of floating bubble breakers to continuous bubble columns. The gas phase holdup, volumetric mass transfer coefficient and axial dispersion coefficient of liquid phase have been correlated with the experimental variables.
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Kang Y, Lim WM, Kim SD, HWAHAK KONGHAK, 25(5), 460 (1987)
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Lamont JC, Scott DS, AIChE J., 16, 513 (1970)
Kang Y, Suh IS, Kim SD, Chem. Eng. Commun., 34, 1 (1985)
