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Slow-mode induced pulsing in trickle beds at elevated temperature for (non-)Newtonian liquids

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Title: Slow-mode induced pulsing in trickle beds at elevated temperature for (non-)Newtonian liquids
Authors: Aydin, B.1, Fries, D.1,2, Lange, R.3, Larachi, F.1 faical.larachi@gch.ulaval.ca
Source: Chemical Engineering Science. Sep2007, Vol. 62 Issue 18-20, p5554-5557. 4p.
Subjects: Trickle bed reactors, Newtonian fluids, Hydrodynamics, High temperatures, Fluid dynamics, Shock waves, Frequencies of oscillating systems
Abstract: Abstract: The effect of temperature on the hydrodynamics of trickle-bed liquid cyclic operation was studied. The trickling-to-pulsing transition in cyclic operation was compared to spontaneous transition in constant-throughput flow, as well as the corresponding pulsing flow regimes. The effect of temperature on and , and on liquid holdup and shock wave plateau time, was assessed for (non-)Newtonian liquids. The effects of temperature and superficial gas velocity on pulse velocity and pulse frequency were evaluated for pulsing flow in cyclic and constant-throughput flows. With increased temperature, shifted to higher gas and liquid velocities; however, the modified Charpentier–Favier diagram still adequately captured both and evolutions with temperature. [Copyright &y& Elsevier]
Copyright of Chemical Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Slow-mode induced pulsing in trickle beds at elevated temperature for (non-)Newtonian liquids
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  Data: <searchLink fieldCode="AR" term="%22Aydin%2C+B%2E%22">Aydin, B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Fries%2C+D%2E%22">Fries, D.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Lange%2C+R%2E%22">Lange, R.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Larachi%2C+F%2E%22">Larachi, F.</searchLink><relatesTo>1</relatesTo><i> faical.larachi@gch.ulaval.ca</i>
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Science%22">Chemical Engineering Science</searchLink>. Sep2007, Vol. 62 Issue 18-20, p5554-5557. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Trickle+bed+reactors%22">Trickle bed reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Newtonian+fluids%22">Newtonian fluids</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrodynamics%22">Hydrodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid+dynamics%22">Fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Shock+waves%22">Shock waves</searchLink><br /><searchLink fieldCode="DE" term="%22Frequencies+of+oscillating+systems%22">Frequencies of oscillating systems</searchLink>
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  Data: Abstract: The effect of temperature on the hydrodynamics of trickle-bed liquid cyclic operation was studied. The trickling-to-pulsing transition in cyclic operation was compared to spontaneous transition in constant-throughput flow, as well as the corresponding pulsing flow regimes. The effect of temperature on and , and on liquid holdup and shock wave plateau time, was assessed for (non-)Newtonian liquids. The effects of temperature and superficial gas velocity on pulse velocity and pulse frequency were evaluated for pulsing flow in cyclic and constant-throughput flows. With increased temperature, shifted to higher gas and liquid velocities; however, the modified Charpentier–Favier diagram still adequately captured both and evolutions with temperature. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Chemical Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.ces.2006.11.054
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        Text: English
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        Type: general
      – SubjectFull: Newtonian fluids
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      – SubjectFull: Hydrodynamics
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      – SubjectFull: High temperatures
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      – SubjectFull: Fluid dynamics
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      – SubjectFull: Shock waves
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      – SubjectFull: Frequencies of oscillating systems
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              Text: Sep2007
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