Results 1 to 10 of about 580 (146)
South African Journal of Chemical Engineering, 2021 Three designs of static spargers were used in a pilot scale external loop airlift reactor to determine their effects on the gas holdup and mass transfer characteristics for an air-water system.
N. Naidoo, W.J. Pauck, M. Carsky
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Engineering Proceedings, 2023 The performance of gas-liquid mixing processes in agitated vessels is commonly measured by the degree of gas dispersion, and local measurements of this parameter can provide a more accurate description of the mixing, especially for non-Newtonian fluids ...
Paloma L. Barros +2 more
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Small bubbles formation and contribution to the overall gas holdup in large diameter columns of very high viscosity oil [PDF]
International Journal of Multiphase Flow, 2022 A limited number of studies are available in literature on the small bubbles which create from gas-very high viscosity oils interaction and its contribution to the gas holdup in the system. The rate of small bubble formation has an important impact on heat and mass transfer in many chemical and industrial processes.
Shara K. Mohammed +3 more
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CFD Analysis of Phase Holdup Behaviour in a Gas-Liquid Bubble Column
Journal of Applied Science & Process Engineering, 2021 Experimental works on bubble column hydrodynamic are normally carried out on a laboratory scale less than 0.3 m with holes number less than 10. In this paper, we discuss several approaches to bubble column scale-up, relying on variables of parameters ...
Nur Khairunnisa Abd Halim +3 more
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Modelling and optimization of an existing onshore gas gathering network using PIPESIM [PDF]
HeliyonPakistan has limited natural gas reserves, and most are found onshore. This article reports on the problems of an onshore gas gathering network (GGN) analysed through steady-state simulation modelling using PIPESIM software.
Iftikhar Ahmed +6 more
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A Hydrodynamic Study in a Sieve Plate Sectionalized Bubble Column [PDF]
Engineering and Technology Journal, 2011 The sectionalization of conventional bubble columns to tray bubble column by perforated trays has been used in chemical, biochemical, and petroleum processes as an effective way to improve the gas-liquid contacting efficiency, and reduce liquid ...
Burhan Sadeq Abdulrazzaq
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Comprehensive Analysis of the Overall Gas Holdup Profiles in Various Air-Water Bubble Columns
Journal of Chemical Engineering of JapanBubble columns (BCs) are widely used gas-liquid contactors in the chemical industry. Their hydrodynamic and mass transfer performance depends on the prevailing flow regime (FR) and the gas sparger (GS) type (particularly in the homogeneous FR).
Stoyan Nedeltchev +7 more
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Applied Sciences, 2020 Liquid holdup and wetting efficiency are essential parameters for design of trickle bed reactors. Both parameters play an important role in reactor performance including pressure drop, conversion, and heat transfer.
Hao Deng +4 more
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Journal of Chemical Engineering of JapanThe article reports a new approach for flow regime (FR) identification and a modified correlation for gas holdup prediction in a bubble column (BC) (0.1 m inner diameter) operated with aqueous solutions of 2-pentanol at ambient conditions.
Stoyan Nedeltchev +3 more
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Effect of hydrodynamics and mass transfer processes on biomass production of Synechococcus HS-9 cultivated using rectangular airlift photobioreactors with baffles [PDF]
Scientific ReportsSynechococcus HS-9 is being recognized as one of the potential strains for biodiesel production due to its high levels of fatty acid methyl ester (FAME), which are around 70–78%.
Arif Rahman +10 more
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