Impact of dense internals on fluid dynamic parameters in bubble column

Show simple item record Kalaga, Dinesh V. Bhusare, Vishal Pant, H.J. Joshi, Jyeshtharaj B. Roy, Shantanu 2018-10-04T12:52:44Z 2018-10-04T12:52:44Z 2018-09
dc.identifier.citation Kalaga, Dinesh V.; Bhusare, Vishal; Pant, H.J.; Joshi, Jyeshtharaj B. and Roy, Shantanu, "Impact of dense internals on fluid dynamic parameters in bubble column", International Journal of Chemical Reactor Engineering, DOI: 10.1515/ijcre-2018-0012, Sep. 2018. en_US
dc.identifier.issn 1932-5150
dc.identifier.issn 1932-5134
dc.description.abstract Industrial gas-liquid processes such as oxidation, hydrogenation, Fischer-Trospch synthesis, liquid-phase methanol synthesis, and nuclear fission are exothermic in nature; the reactor of choice for such processes is, therefore, a bubble column equipped with heat exchanging internals. In addition to maintaining the desired process temperature, the heat exchanging vertical tube internals are used to control flow structures and liquid back mixing. The present work reports the experimentally measured gas hold-up, mean liquid velocity and liquid phase turbulent kinetic energy, using the Radioactive Particle Tracking (RPT) technique, in a 120 mm diameter bubble column equipped with dense vertical tube internals covering 23 % of the total cross-sectional area of the column. The effect of superficial gas velocity (44–265 mm/s) on gas hold-up, mean liquid velocity and turbulent kinetic energy is presented and discussed. It has been inferred from the experimental results that the vertical tube internal located at the center of the column plays a vital role in affecting the hydrodynamics when compared to the conventional internal configurations reported in the literature. For the chosen dense internal configuration, the cross-sectional distribution of the gas holdup, mean liquid velocity and turbulent kinetic energy show asymmetry for all the superficial gas velocities investigated. The overall gas holdup and the liquid turbulence increases with an increase in the superficial gas velocity. The strong liquid circulation velocities have been seen upon the insertion of the dense internals.
dc.description.statementofresponsibility by Dinesh V.Kalaga, Vishal Bhusare, H.J. Pant, Jyeshtharaj B. Joshi and Shantanu Roy
dc.language.iso en en_US
dc.publisher De Gruyter en_US
dc.subject Bubble column with internals en_US
dc.subject Vertical tube internals en_US
dc.subject Gas hold-up en_US
dc.subject Liquid phase turbulence en_US
dc.title Impact of dense internals on fluid dynamic parameters in bubble column en_US
dc.type Article en_US
dc.relation.journal International Journal of Chemical Reactor Engineering

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