Gas solid contacting measurements in a turbulent fluidized bed by oxidation of carbon monoxide

Robbie H. Venderbosch; Wolter Prins; Wim P.M. van Swaaij

doi:10.2298/TSCI180727291V

Gas solid contacting measurements in a turbulent fluidized bed by oxidation of carbon monoxide

Robbie H. Venderbosch^*, Wolter Prins, Wim P.M. van Swaaij

^*Corresponding author for this work

Sustainable Process Technology

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Abstract

The conversion rate of the mass transfer controlled oxidation of CO over a Pt/γ-alumina catalyst (d_p = 65 μm) has been studied in a fluidized bed (internal diameter = 0.05 m) p operated close to and in the turbulent fluid bed regime. The objectives were to investigate the gas-solids contacting efficiency to evaluate the conversion data in terms of overall mass transfer coefficients and define the apparent contact efficiency. At high superficial gas velocities, the concept of formation of particle agglomerates and voids is more realistic than the two-phase model considering discrete bubbles and a dense phase. The two-phase model is not useless but has hardly any relation with the real flow pattern in the turbulent regime.

Original language	English
Pages (from-to)	S1413-S1423
Journal	Thermal Science
Volume	23
Issue number	Suppl. 5
DOIs	https://doi.org/10.2298/TSCI180727291V
Publication status	Published - 2019

Keywords

CO oxidation
Contacting efficiency
Mass transfer
Turbulent fluidized bed

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10.2298/TSCI180727291VLicence: CC BY-NC-ND

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title = "Gas solid contacting measurements in a turbulent fluidized bed by oxidation of carbon monoxide",

abstract = "The conversion rate of the mass transfer controlled oxidation of CO over a Pt/γ-alumina catalyst (dp = 65 μm) has been studied in a fluidized bed (internal diameter = 0.05 m) p operated close to and in the turbulent fluid bed regime. The objectives were to investigate the gas-solids contacting efficiency to evaluate the conversion data in terms of overall mass transfer coefficients and define the apparent contact efficiency. At high superficial gas velocities, the concept of formation of particle agglomerates and voids is more realistic than the two-phase model considering discrete bubbles and a dense phase. The two-phase model is not useless but has hardly any relation with the real flow pattern in the turbulent regime.",

keywords = "CO oxidation, Contacting efficiency, Mass transfer, Turbulent fluidized bed",

author = "Venderbosch, {Robbie H.} and Wolter Prins and {van Swaaij}, {Wim P.M.}",

note = "Funding Information: We acknowledge the financial support of the Dutch Ministry of Economic Affairs through the Netherlands Energy Research Foundation ECN. We also thank R. de Wit and E. Middelink for their assistance in the experimental work. We are also obliged to Prof. J.R. Grace and Prof. J. Chaouki for providing us their experimental data. Publisher Copyright: {\textcopyright} 2019 Society of Thermal Engineers of Serbia.",

year = "2019",

doi = "10.2298/TSCI180727291V",

language = "English",

volume = "23",

pages = "S1413--S1423",

journal = "Thermal Science",

issn = "0354-9836",

publisher = "Vinca Inst Nuclear Sci",

number = "Suppl. 5",

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TY - JOUR

T1 - Gas solid contacting measurements in a turbulent fluidized bed by oxidation of carbon monoxide

AU - Venderbosch, Robbie H.

AU - Prins, Wolter

AU - van Swaaij, Wim P.M.

N1 - Funding Information: We acknowledge the financial support of the Dutch Ministry of Economic Affairs through the Netherlands Energy Research Foundation ECN. We also thank R. de Wit and E. Middelink for their assistance in the experimental work. We are also obliged to Prof. J.R. Grace and Prof. J. Chaouki for providing us their experimental data. Publisher Copyright: © 2019 Society of Thermal Engineers of Serbia.

PY - 2019

Y1 - 2019

N2 - The conversion rate of the mass transfer controlled oxidation of CO over a Pt/γ-alumina catalyst (dp = 65 μm) has been studied in a fluidized bed (internal diameter = 0.05 m) p operated close to and in the turbulent fluid bed regime. The objectives were to investigate the gas-solids contacting efficiency to evaluate the conversion data in terms of overall mass transfer coefficients and define the apparent contact efficiency. At high superficial gas velocities, the concept of formation of particle agglomerates and voids is more realistic than the two-phase model considering discrete bubbles and a dense phase. The two-phase model is not useless but has hardly any relation with the real flow pattern in the turbulent regime.

AB - The conversion rate of the mass transfer controlled oxidation of CO over a Pt/γ-alumina catalyst (dp = 65 μm) has been studied in a fluidized bed (internal diameter = 0.05 m) p operated close to and in the turbulent fluid bed regime. The objectives were to investigate the gas-solids contacting efficiency to evaluate the conversion data in terms of overall mass transfer coefficients and define the apparent contact efficiency. At high superficial gas velocities, the concept of formation of particle agglomerates and voids is more realistic than the two-phase model considering discrete bubbles and a dense phase. The two-phase model is not useless but has hardly any relation with the real flow pattern in the turbulent regime.

KW - CO oxidation

KW - Contacting efficiency

KW - Mass transfer

KW - Turbulent fluidized bed

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U2 - 10.2298/TSCI180727291V

DO - 10.2298/TSCI180727291V

M3 - Article

AN - SCOPUS:85084091949

SN - 0354-9836

VL - 23

SP - S1413-S1423

JO - Thermal Science

JF - Thermal Science

IS - Suppl. 5

ER -

Gas solid contacting measurements in a turbulent fluidized bed by oxidation of carbon monoxide

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Keywords

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