Residence time distribution of the liquid in gas—liquid cocurrent upflow fixed-bed reactors with porous particles
Identifieur interne : 001237 ( Istex/Corpus ); précédent : 001236; suivant : 001238Residence time distribution of the liquid in gas—liquid cocurrent upflow fixed-bed reactors with porous particles
Auteurs : Xue-Long Yang ; Jean-Paul Euzen ; Gabriel WildSource :
- Chemical Engineering Science [ 0009-2509 ] ; 1990.
English descriptors
- KwdEn :
- Alumina particles, Axial, Axial dispersion, Axial dispersion coefficient, Basic assumptions, Catalyst pores, Catalytic reactors, Cocurrent, Cocurrent upflow, Cocurrent upflow reactors, Coefficient, Column diameter, Concentration signal, Dirac pulse, Dispersion, Dynamic fraction, Dynamic holdup, Dynamic part, Error function, Experimental concentration profiles, External mass transfer, Flow behaviour, Higher values, Holdup, Liquid content, Liquid flow, Liquid flow rate, Liquid flow rates, Liquid holdup, Liquid phase, Liquid velocities, Liquid velocity, Long tail, Mass transfer, Mass transfer coefficient, Piston flow, Plug flow, Pore, Pore diameter distribution, Pore volume, Porous particles, Research directions, Residence time distribution, Response curve, Shah, Space time, Stagnant zone, Stagnant zones, Superficial velocity, Time curves, Tracer, Transfer units, Trickle beds, Upflow, Upflow reactor, Villermaux, Volumetric mass transfer coefficient.
- Teeft :
- Alumina particles, Axial, Axial dispersion, Axial dispersion coefficient, Basic assumptions, Catalyst pores, Catalytic reactors, Cocurrent, Cocurrent upflow, Cocurrent upflow reactors, Coefficient, Column diameter, Concentration signal, Dirac pulse, Dispersion, Dynamic fraction, Dynamic holdup, Dynamic part, Error function, Experimental concentration profiles, External mass transfer, Flow behaviour, Higher values, Holdup, Liquid content, Liquid flow, Liquid flow rate, Liquid flow rates, Liquid holdup, Liquid phase, Liquid velocities, Liquid velocity, Long tail, Mass transfer, Mass transfer coefficient, Piston flow, Plug flow, Pore, Pore diameter distribution, Pore volume, Porous particles, Research directions, Residence time distribution, Response curve, Shah, Space time, Stagnant zone, Stagnant zones, Superficial velocity, Time curves, Tracer, Transfer units, Trickle beds, Upflow, Upflow reactor, Villermaux, Volumetric mass transfer coefficient.
Abstract
Abstract: The authors present the first experimental investigation of the residence time distribution of the liquid in gas—liquid upflow fixed-bed reactor with porous particles. The PDe model (plug flow with axial dispersion and exchange with well-mixed stagnant zones) represents very well the experimental concentration profiles. The dynamic fraction of the liquid holdup obtained by fitting the PDE model to the experimental curves seems to indicate that only a relatively small fraction of the pore volume is accessible to the tracer. A critical evaluation of the results obtained and some possible further research directions are indicated.
Url:
DOI: 10.1016/0009-2509(90)80222-Z
Links to Exploration step
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<ce:abstract-sec><ce:simple-para view="all" id="simple-para.0010">The authors present the first experimental investigation of the residence time distribution of the liquid in gas—liquid upflow fixed-bed reactor with porous particles. The PDe model (plug flow with axial dispersion and exchange with well-mixed stagnant zones) represents very well the experimental concentration profiles. The dynamic fraction of the liquid holdup obtained by fitting the PDE model to the experimental curves seems to indicate that only a relatively small fraction of the pore volume is accessible to the tracer. A critical evaluation of the results obtained and some possible further research directions are indicated.</ce:simple-para>
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<name type="personal"><namePart type="given">Gabriel</namePart>
<namePart type="family">Wild</namePart>
<affiliation>Laboratoire des Sciences du Génie Chimique, CNRS—ENSIC—INPL, B.P. 451, 1, rue Grandville, F-54001 Nancy, France</affiliation>
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<dateIssued encoding="w3cdtf">1990</dateIssued>
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<language><languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<abstract lang="en">Abstract: The authors present the first experimental investigation of the residence time distribution of the liquid in gas—liquid upflow fixed-bed reactor with porous particles. The PDe model (plug flow with axial dispersion and exchange with well-mixed stagnant zones) represents very well the experimental concentration profiles. The dynamic fraction of the liquid holdup obtained by fitting the PDE model to the experimental curves seems to indicate that only a relatively small fraction of the pore volume is accessible to the tracer. A critical evaluation of the results obtained and some possible further research directions are indicated.</abstract>
<relatedItem type="host"><titleInfo><title>Chemical Engineering Science</title>
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<titleInfo type="abbreviated"><title>CES</title>
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<dateIssued encoding="w3cdtf">1990</dateIssued>
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<identifier type="ISSN">0009-2509</identifier>
<identifier type="PII">S0009-2509(00)X0513-1</identifier>
<part><date>1990</date>
<detail type="volume"><number>45</number>
<caption>vol.</caption>
</detail>
<detail type="issue"><number>11</number>
<caption>no.</caption>
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<extent unit="issue-pages"><start>3203</start>
<end>3387</end>
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<extent unit="pages"><start>3311</start>
<end>3317</end>
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<identifier type="DOI">10.1016/0009-2509(90)80222-Z</identifier>
<identifier type="PII">0009-2509(90)80222-Z</identifier>
<identifier type="ArticleID">9080222Z</identifier>
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