Hydrodynamics of Bubbly Flow in a Modified Reactor

Authors: M. Sivaiah, R. Parmar, S. K. Majumder

Abstract:

This article reports on hydrodynamic, mass transfer performances of fine bubble in a modified reactor. The quality of mixing in the modified reactor is discussed in the paper. Mass transfer efficiency based on quality of mixing is enunciated. To interpret the gas phase volume fraction and the quality of mixing is the empirical models for the modified system are developed.

Keywords: Downflow, bubble, hydrodynamics, gas-liquid, mixing, mass transfer, gas holdup

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1088512

References:

[1] M. J. McCarthy, J. B. Henderson, and N.A. Molloy, "Gas Entrainment by plunging jets, Proceedings of Chemeca’70, Melbourne, Section 2, pp. 86-100, 1970.
[2] W. Cumming, The impact of falling liquids with liquid surfaces, Ph.D. thesis, Lough. Univ. of Technol. 1975.
[3] E. J. McKeogh, D. A. Ervine, and K. Endoh, "Air entrainment rate and diffusion pattern of plunging liquid jets,” Chemical Engineering Science, vol. 36, pp. 1161-1172, 1981.
[4] K. Bin, and J. M. Smith, Mass transfer in a plunging liquid jet absorber, Chemical Engineering Communication, Vol. 15, pp. 367-383, 1982.
[5] K. Bin, Minimum air entrainment velocity of vertical plunging liquid jets, Chemical Engineering Science, vol. 43, pp. 379-389, 1988.
[6] K. Bin, Gas entrainment by plunging liquid jets, Chemical Engineering Science, vol. 48, pp. 3585-3630, 1993.
[7] S. K. Majumder, G. Kundu, and D. Mukharjee, Pressure drop and bubble–liquid interfacial shear stress in a modified gas non-Newtonian liquid down flow bubble column, Chemical Engineering Science, vol. 62, pp. 2482-2490, 2007.
[8] R. W. Lockhart, and R. C. Martinelli, Proposed correlation of data for isothermal two-phase, two-component flow in pipes, Chemical Engineering Progress, vol. 45, pp. 39–48, 1949.
[9] S. K. Majumder, G. Kundu, and D. Mukherjee, "Mixing mechanism in ejector induced downflow bubble column”, Chemical Engineering Journal,” vol. 112, pp. 45-55, 2005.
[10] S. Nedeltchev, S. Ookawara, and K. Ogawa, "A fundamental approach to bubble column scale-up based on quality of mixedness,” Journal of Chemical Engineering of Japan,” vol. 32, pp. 431-439, 1999.
[11] P. Manish, and S. K. Majumder, "Quality of mixing in downflow bubble column based on information entropy theory, Chemical Engineering Science,” vol. 64, pp: 1798-1805, 2009.
[12] M. Matsumura, H. Sakuma, T. Yamagata, and J. Kobayashi, Gas Entrainment in a New Gas Entraining Fermenter, Journal of Fermentation Technology, Vol. 60, pp. 457-467, 1982.
[13] H. Fukuda, Y. Sumino, and T. Kanzaki, "Scale-up of Fermenters. II. Modified equations for power requirement,” Journal of Fermentation Technology, Vol. 46, pp. 838-845, 1968.
[14] H. H. Topiwala, and G. Hamer, Mass Transfer and Dispersion Properties in a Fermenter with a Gas-Inducing Impeller, Transactions of the Institution Chemical Engineering, Vol. 52, pp. 113-120, 1974.
[15] Y. Zundelevich, "Power Consumption and Gas Capacity of Self Inducting Turbo Aerators, AIChE Journal, vol. 25, pp. 763-773, 1979.
[16] A. Ohkawa, D. Y. Kusabiraki, Kawai, and N. Sakai, Some flow characteristics of a vertical liquid jet system having downcomers Chemical Engineering Science, vol. 41, pp. 2347-2361, 1986.