Determination of liquid hold-up and flow distribution inside modular catalytic structured packings
Identifieur interne : 000035 ( PascalFrancis/Checkpoint ); précédent : 000034; suivant : 000036Determination of liquid hold-up and flow distribution inside modular catalytic structured packings
Auteurs : Aurora Viva [Italie] ; Said Aferka [Belgique] ; Dominique Toye [Belgique] ; Pierre Marchot [Belgique] ; Michel Crine [Belgique] ; Elisabetta Brunazzi [Italie]Source :
- Chemical engineering research & design [ 0263-8762 ] ; 2011.
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Abstract
This paper presents the results of a study carried out to examine liquid hold-up and flow distribution in a 0.1 m internal diameter column filled with catalytic structured packing Katapak-SP. Information has been gathered at local scale by means of a non-intrusive high energy X-ray tomograph. Measurements have been carried out in a large number of packing cross sections situated at different heights between the top and bottom of the packed column, giving access to the evolution of axial profiles of liquid hold-up in the open channels (separation zone) and in the catalytic baskets (reaction zone) as a function of the liquid load. The total hold-up, evaluated by averaging local tomographic values over the packed volume, was compared with global hold-up data obtained by traditional methods, like draining and RTD measurements. A method was also proposed to deduce the distribution of liquid flowrate, between the reaction and the separation zones, from hold-up distribution measured by tomography. The methodology was validated by comparison with experimental data obtained by collecting separately the liquid flowing out of the two zones at the bottom of the packed bed. The obtained results are invaluable to improve the description of hydrodynamics in rate based performance models.
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aut.</sZ></inist:fA14><country>Belgique</country><wicri:noRegion>Liege 4000</wicri:noRegion></affiliation></author><author><name sortKey="Toye, Dominique" sort="Toye, Dominique" uniqKey="Toye D" first="Dominique" last="Toye">Dominique Toye</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratory of Chemical Engineering (ULG), University of Liège, Sart-Tilman B6</s1><s2>Liege 4000</s2><s3>BEL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Belgique</country><wicri:noRegion>Liege 4000</wicri:noRegion></affiliation></author><author><name sortKey="Marchot, Pierre" sort="Marchot, Pierre" uniqKey="Marchot P" first="Pierre" last="Marchot">Pierre Marchot</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratory of Chemical Engineering (ULG), University of Liège, Sart-Tilman B6</s1><s2>Liege 4000</s2><s3>BEL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Belgique</country><wicri:noRegion>Liege 4000</wicri:noRegion></affiliation></author><author><name sortKey="Crine, Michel" sort="Crine, Michel" uniqKey="Crine M" first="Michel" last="Crine">Michel Crine</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratory of Chemical Engineering (ULG), University of Liège, Sart-Tilman B6</s1><s2>Liege 4000</s2><s3>BEL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Belgique</country><wicri:noRegion>Liege 4000</wicri:noRegion></affiliation></author><author><name sortKey="Brunazzi, Elisabetta" sort="Brunazzi, Elisabetta" uniqKey="Brunazzi E" first="Elisabetta" last="Brunazzi">Elisabetta Brunazzi</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemical Engineering (DICCISM), University of Pisa, Via Diotisalvi 2</s1><s2>56126 Pisa</s2><s3>ITA</s3><sZ>1 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Italie</country><placeName><settlement type="city">Pise</settlement><region 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aut.</sZ></inist:fA14><country>Italie</country><placeName><settlement type="city">Pise</settlement><region nuts="2">Toscane</region></placeName></affiliation></author><author><name sortKey="Aferka, Said" sort="Aferka, Said" uniqKey="Aferka S" first="Said" last="Aferka">Said Aferka</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratory of Chemical Engineering (ULG), University of Liège, Sart-Tilman B6</s1><s2>Liege 4000</s2><s3>BEL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Belgique</country><wicri:noRegion>Liege 4000</wicri:noRegion></affiliation></author><author><name sortKey="Toye, Dominique" sort="Toye, Dominique" uniqKey="Toye D" first="Dominique" last="Toye">Dominique Toye</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratory of Chemical Engineering (ULG), University of Liège, Sart-Tilman B6</s1><s2>Liege 4000</s2><s3>BEL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Belgique</country><wicri:noRegion>Liege 4000</wicri:noRegion></affiliation></author><author><name sortKey="Marchot, Pierre" sort="Marchot, Pierre" uniqKey="Marchot P" first="Pierre" last="Marchot">Pierre Marchot</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratory of Chemical Engineering (ULG), University of Liège, Sart-Tilman B6</s1><s2>Liege 4000</s2><s3>BEL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Belgique</country><wicri:noRegion>Liege 4000</wicri:noRegion></affiliation></author><author><name sortKey="Crine, Michel" sort="Crine, Michel" uniqKey="Crine M" first="Michel" last="Crine">Michel Crine</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratory of Chemical Engineering (ULG), University of Liège, Sart-Tilman B6</s1><s2>Liege 4000</s2><s3>BEL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Belgique</country><wicri:noRegion>Liege 4000</wicri:noRegion></affiliation></author><author><name sortKey="Brunazzi, Elisabetta" sort="Brunazzi, Elisabetta" uniqKey="Brunazzi E" first="Elisabetta" last="Brunazzi">Elisabetta Brunazzi</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemical Engineering (DICCISM), University of Pisa, Via Diotisalvi 2</s1><s2>56126 Pisa</s2><s3>ITA</s3><sZ>1 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Italie</country><placeName><settlement type="city">Pise</settlement><region nuts="2">Toscane</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Chemical engineering research & design</title><title level="j" type="abbreviated">Chem. eng. res. des.</title><idno type="ISSN">0263-8762</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Chemical engineering research & design</title><title level="j" type="abbreviated">Chem. eng. res. des.</title><idno type="ISSN">0263-8762</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Catalytic reaction</term><term>Flow field</term><term>Hydrodynamics</term><term>Liquid holdup</term><term>Modeling</term><term>Ordered packing</term><term>Packed bed</term><term>Packed column</term><term>Residence time distribution</term><term>Tomography</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Retenue liquide</term><term>Hydrodynamique</term><term>Champ écoulement</term><term>Garnissage rangé</term><term>Colonne garnissage</term><term>Réaction catalytique</term><term>Distribution temps séjour</term><term>Tomographie</term><term>Lit garnissage</term><term>Modélisation</term><term>Débit fluide</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This paper presents the results of a study carried out to examine liquid hold-up and flow distribution in a 0.1 m internal diameter column filled with catalytic structured packing Katapak-SP. Information has been gathered at local scale by means of a non-intrusive high energy X-ray tomograph. Measurements have been carried out in a large number of packing cross sections situated at different heights between the top and bottom of the packed column, giving access to the evolution of axial profiles of liquid hold-up in the open channels (separation zone) and in the catalytic baskets (reaction zone) as a function of the liquid load. The total hold-up, evaluated by averaging local tomographic values over the packed volume, was compared with global hold-up data obtained by traditional methods, like draining and RTD measurements. A method was also proposed to deduce the distribution of liquid flowrate, between the reaction and the separation zones, from hold-up distribution measured by tomography. The methodology was validated by comparison with experimental data obtained by collecting separately the liquid flowing out of the two zones at the bottom of the packed bed. The obtained results are invaluable to improve the description of hydrodynamics in rate based performance models.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0263-8762</s0></fA01><fA02 i1="01"><s0>CERDEE</s0></fA02><fA03 i2="1"><s0>Chem. eng. res. des.</s0></fA03><fA05><s2>89</s2></fA05><fA06><s2>8</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Determination of liquid hold-up and flow distribution inside modular catalytic structured packings</s1></fA08><fA09 i1="01" i2="1" l="ENG"><s1>Distillation & Absorption</s1></fA09><fA11 i1="01" i2="1"><s1>VIVA (Aurora)</s1></fA11><fA11 i1="02" i2="1"><s1>AFERKA (Said)</s1></fA11><fA11 i1="03" i2="1"><s1>TOYE (Dominique)</s1></fA11><fA11 i1="04" i2="1"><s1>MARCHOT (Pierre)</s1></fA11><fA11 i1="05" i2="1"><s1>CRINE (Michel)</s1></fA11><fA11 i1="06" i2="1"><s1>BRUNAZZI (Elisabetta)</s1></fA11><fA14 i1="01"><s1>Department of Chemical Engineering (DICCISM), University of Pisa, Via Diotisalvi 2</s1><s2>56126 Pisa</s2><s3>ITA</s3><sZ>1 aut.</sZ><sZ>6 aut.</sZ></fA14><fA14 i1="02"><s1>Laboratory of Chemical Engineering (ULG), University of Liège, Sart-Tilman B6</s1><s2>Liege 4000</s2><s3>BEL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA18 i1="01" i2="1"><s1>Eindhoven University of Technology</s1><s3>NLD</s3><s9>org-cong.</s9></fA18><fA18 i1="02" i2="1"><s1>European Federation of Chemical Engineers (EFCE). Working Party on Fluid Separations</s1><s3>EUR</s3><s9>org-cong.</s9></fA18><fA20><s1>1414-1426</s1></fA20><fA21><s1>2011</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>4284</s2><s5>354000509424900240</s5></fA43><fA44><s0>0000</s0><s1>© 2011 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>3/4 p.</s0></fA45><fA47 i1="01" i2="1"><s0>11-0365132</s0></fA47><fA60><s1>P</s1><s2>C</s2></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Chemical engineering research & design</s0></fA64><fA66 i1="01"><s0>NLD</s0></fA66><fC01 i1="01" l="ENG"><s0>This paper presents the results of a study carried out to examine liquid hold-up and flow distribution in a 0.1 m internal diameter column filled with catalytic structured packing Katapak-SP. Information has been gathered at local scale by means of a non-intrusive high energy X-ray tomograph. Measurements have been carried out in a large number of packing cross sections situated at different heights between the top and bottom of the packed column, giving access to the evolution of axial profiles of liquid hold-up in the open channels (separation zone) and in the catalytic baskets (reaction zone) as a function of the liquid load. The total hold-up, evaluated by averaging local tomographic values over the packed volume, was compared with global hold-up data obtained by traditional methods, like draining and RTD measurements. A method was also proposed to deduce the distribution of liquid flowrate, between the reaction and the separation zones, from hold-up distribution measured by tomography. The methodology was validated by comparison with experimental data obtained by collecting separately the liquid flowing out of the two zones at the bottom of the packed bed. The obtained results are invaluable to improve the description of hydrodynamics in rate based performance models.</s0></fC01><fC02 i1="01" i2="X"><s0>001D07D</s0></fC02><fC02 i1="02" i2="X"><s0>001D07G</s0></fC02><fC02 i1="03" i2="X"><s0>001D07H</s0></fC02><fC02 i1="04" i2="X"><s0>001C01A03B</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Retenue liquide</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Liquid holdup</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Detención líquido</s0><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Hydrodynamique</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Hydrodynamics</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Hidrodinámica</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Champ écoulement</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Flow field</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Campo flujo</s0><s5>03</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Garnissage rangé</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Ordered packing</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Relleno ordenado</s0><s5>04</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Colonne garnissage</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Packed column</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Columna de relleno</s0><s5>05</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Réaction catalytique</s0><s5>06</s5></fC03><fC03 i1="06" i2="X" l="ENG"><s0>Catalytic reaction</s0><s5>06</s5></fC03><fC03 i1="06" i2="X" l="SPA"><s0>Reacción catalítica</s0><s5>06</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Distribution temps séjour</s0><s5>07</s5></fC03><fC03 i1="07" i2="X" l="ENG"><s0>Residence time distribution</s0><s5>07</s5></fC03><fC03 i1="07" i2="X" l="SPA"><s0>Distribución tiempo estancia</s0><s5>07</s5></fC03><fC03 i1="08" i2="X" l="FRE"><s0>Tomographie</s0><s5>08</s5></fC03><fC03 i1="08" i2="X" l="ENG"><s0>Tomography</s0><s5>08</s5></fC03><fC03 i1="08" i2="X" l="SPA"><s0>Tomografía</s0><s5>08</s5></fC03><fC03 i1="09" i2="X" l="FRE"><s0>Lit garnissage</s0><s5>09</s5></fC03><fC03 i1="09" i2="X" l="ENG"><s0>Packed bed</s0><s5>09</s5></fC03><fC03 i1="09" i2="X" l="SPA"><s0>Lecho relleno</s0><s5>09</s5></fC03><fC03 i1="10" i2="X" l="FRE"><s0>Modélisation</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="ENG"><s0>Modeling</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="SPA"><s0>Modelización</s0><s5>10</s5></fC03><fC03 i1="11" i2="X" l="FRE"><s0>Débit fluide</s0><s4>INC</s4><s5>32</s5></fC03><fN21><s1>249</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA><pR><fA30 i1="01" i2="1" l="ENG"><s1>International Conference on Distillation & Absorption</s1><s3>Eindhoven NLD</s3><s4>2010-09-12</s4></fA30></pR></standard></inist><affiliations><list><country><li>Belgique</li><li>Italie</li></country><region><li>Toscane</li></region><settlement><li>Pise</li></settlement></list><tree><country name="Italie"><region name="Toscane"><name sortKey="Viva, Aurora" sort="Viva, Aurora" uniqKey="Viva A" first="Aurora" last="Viva">Aurora Viva</name></region><name sortKey="Brunazzi, Elisabetta" sort="Brunazzi, Elisabetta" uniqKey="Brunazzi E" first="Elisabetta" last="Brunazzi">Elisabetta Brunazzi</name></country><country name="Belgique"><noRegion><name sortKey="Aferka, Said" sort="Aferka, Said" uniqKey="Aferka S" first="Said" last="Aferka">Said Aferka</name></noRegion><name sortKey="Crine, Michel" sort="Crine, Michel" uniqKey="Crine M" first="Michel" last="Crine">Michel Crine</name><name sortKey="Marchot, Pierre" sort="Marchot, Pierre" uniqKey="Marchot P" first="Pierre" last="Marchot">Pierre Marchot</name><name sortKey="Toye, Dominique" sort="Toye, Dominique" uniqKey="Toye D" first="Dominique" last="Toye">Dominique Toye</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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