Results 1 to 10 of about 81,109 (159)
Temperature Effects on the Gas Hold-up in Agitated Vessels [PDF]
Chemical Engineering Research and Design, 2002 Previous work found the gas hold-up in a tall, 0.15 m3 vessel, agitated by three impellers, to decrease considerably with temperature. This was attributed to a decrease in liquid viscosity, a decrease in surface tension or a decrease in gas density. The aim of this work was to investigate the influence of gas density on the gas hold-up.
A B de Haan
exaly +3 more sources
Gas hold-up in a three-phase reciprocating plate column [PDF]
Journal of the Serbian Chemical Society, 2005 The influence of the geometry of a reciprocating plate column (diameter), superficial gas velocity, vibration intensity and content of the solid phase in the column on the gas hold-up in a three phase column (G–L–S) were investigated in this study.
LJUBISA B. NIKOLIC +3 more
doaj +4 more sources
Gas hold-up distribution and mixing time in gas–liquid stirred tanks [PDF]
Chemical Engineering Journal, 2015 Abstract In this work, the gas–liquid dispersion in a stirred tank equipped with different impellers is investigated by Electrical Resistance Tomography (ERT). The main goal of the study is to provide detailed information on the spatial distribution of the gas phase and on the effect of bubbles on the liquid homogenisation dynamics.
Giuseppina Montante +1 more
exaly +3 more sources
Hold-Up Problems in International Gas Trade: A Case Study
Energies, 2021 The infrastructure required for international natural gas trade is considerable, which often leads to hold-up problems and supply disruptions. This study discusses disruptions of gas supply from Algeria, Indonesia, Russia, and Turkmenistan since the ...
Guych Nuryyev, Tomasz Korol, Ilia Tetin
doaj +1 more source
Gas Hold-Up and Mass Transfer in a Vessel with an Unsteady Rotating Concave Blade Impeller
Energies, 2022 The steady mixing of gas-liquid systems is used where a large development of the interfacial area is required. However, the presence of gas in the liquid reduces the efficiency of mass transfer by reducing the mixing power, due to the creation of gas ...
Sebastian Frankiewicz, Szymon Woziwodzki
doaj +1 more source
Prediction of gas hold-up for alcohol solutions in a draft-tube bubble column [PDF]
Acta Periodica Technologica, 2006 This paper deals with the prediction of the overall gas hold-up (εg), in the diluted solutions of C -C alcohols in draft - tube bubble column, by applying several newly proposed correlations and some of the well-known equations.
Albijanić Boris V. +3 more
doaj +1 more source
Gas Hold-Up in Vessel with Dual Impellers and Different Baffles
Energies, 2022 The influence of impellers system, baffles system and type of liquid on gas hold-up in a vessel has been presented in this paper. The analysis of gas hold-up was conducted on the basis of the data obtained in the vessel.
Marta Major-Godlewska, Magdalena Cudak
doaj +1 more source
Numerical Analysis of Gas Hold-Up of Two-Phase Ebullated Bed Reactor
ChemEngineering, 2023 Due to the significant increase in heavy feedstocks being transported to refineries and the hydrocracking process, the significance of adopting an ebullated bed reactor has been reemphasized in recent years.
Riyadh S. Almukhtar +12 more
doaj +1 more source
Computational Modeling of the Impact of Solid Particles on the Gas Hold-up in Slurry Bubble Columns
Chemical Engineering Transactions, 2021 Three-phase bubble column reactors, despite their broad diffusion in chemical process, are often difficult to describe given the intricate mutual phase interactions.
Francesco Maniscalco +3 more
doaj +1 more source
Hydrodynamics and mass transfer inthree-phase airlift reactors for activated Carbon and sludge filtration [PDF]
Advances in Environmental Technology, 2017 A bioreactor refers to any manufactured or engineered device that supports a biologically active environment. These kinds of reactors are designed to treat wastewater treatment.
Mohammad Ali Salehi, Nasrin Hakimghiasi
doaj +1 more source