Size of Bubbles and Gas Holdup in Bubble Columns [PDF]
, 1986 Bubble columns are extensively used in the chemical industry. This paper evaluates the present state of the art on the size of bubbles from a sieve plate and gas holdup, mainly on the basis of the results of the authors, including previous ones. The size
Miyahara, Toshiro, Takahashi, Teruo
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ChemEngineeringThis study explores the dynamics of liquid holdup in a lab-scale co-current two-phase upflow moving packed bed reactor, specifically examining how superficial gas velocity influences the line average external liquid holdup at a fixed superficial liquid ...
Ali Toukan +4 more
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Computationally efficient stratified flow wet angle correlation for high resolution simulations [PDF]
, 2019 n high resolution two-phase pipe flow simulations, such as slug capturing simulation for liquid-gas pipe flow, explicit calculation of stratified flow wet angle has been proposed to improve computational speed of simulations.
Kara, Fuat, Oloruntoba, O
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Influence of internals on counter-current bubble column hydrodynamics: Holdup, flow regime transition and local flow properties [PDF]
, 2016 Bubble columns are frequently studied without considering internals (open tube bubble columns). However, in most industrial applications, internal devices are often added to control heat transfer, to foster bubble break-up or to limit liquid phase back ...
Besagni, G., Inzoli, Fabio
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PREDICTION OF GAS HOLD-UP IN A COMBINED LOOP AIR LIFT FLUIDIZED BED REACTOR USING NEWTONIAN AND NON-NEWTONIAN LIQUIDS [PDF]
, 2011 Many experiments have been conducted to study the hydrodynamic characteristics of column reactors and loop reactors. In this present work, a novel combined loop airlift fluidized bed reactor was developed to study the effect of superficial gas and liquid
Akilamudhan Palaniappan +3 more
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Characteristics of liquid flow in a rotating packed bed for CO2 capture: A CFD analysis [PDF]
, 2017 Rotating packed beds (RPBs) have been proposed as an emerging technology to be used for post-combustion CO2 capture (PCC) from the flue gas. However, due to the complex structure of the packing in RPBs, characteristics of the liquid flow within RPBs are ...
Ingham, D. +5 more
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Effect of Gas Distributor on Gas Holdup in Fiber Suspensions
Volume 3, 2004 Two different aeration plates are used to study their effect on gas holdup and flow regime transition in fiber suspensions. Two gas distributors with different open areas (A = 0.57% and 2.14%) and the same orifice diameter (do = 1 mm) are used, and experiments are performed using three different Rayon fiber lengths (L = 3, 6, and 12 mm) over a range of
Su, Xufeng, Heindel, Theodore
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Electrical resistance tomography for gas holdup in a gas-liquid stirred tank reactor [PDF]
Chemical Engineering Science, 2017 Abstract Gas-Liquid flows in stirred tank reactors (STR) are used in many significant industrial operations such as hydrogenation, absorption, stripping, oxidation, hydrogenation, ozonation, chlorination, fermentation, etc. Gas-Liquid STRs are expected to perform several functions such as mixing, dispersing gas into liquid, mass and heat transfer and
Sardeshpande, Madhavi V. +2 more
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Gas-solid trickle flow hydrodynamics in a packed column [PDF]
, 1987 The pressure gradient and the static and the dynamic hold-up have been measured for a system consisting of a Fluid Cracking Catalyst (FCC) of 30–150 × 10−6 m diameter, trickling over a packed bed and with a gas streaming in countercurrent flow.
Kuczynski, M., Westerterp, K.R.
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Performance Evaluation of a Full-Scale Deep U-Tube Utilizing Ozonated Oxygen as the Process Gas for Treating Drinking Water [PDF]
, 2007 A deep U-tube for treating drinking water is composed of a coaxial inner tube serving as an efficient concurrent down-flow ozone dissolver and an outer column carrying out reactions between ozone and organic substances dissolved in the water after ...
E. Shibutani, K. Muroyama
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