The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions
Gas holdup was investigated in a gas-liquid and gas-liquid-solid reciprocating plate column (RPC) under various operation conditions. Aqueous carboxymethyl cellulose (sodium salt, CMC) solutions were used as the liquid phase, the solid phase was spheres placed into interplate spaces, and the gas pha...
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Serbian Chemical Society
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doaj-e849d21cf50b49a7bf23b5c7137d028e2020-12-24T14:29:38ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51391820-74212005-01-0170121533154410.2298/JSC0512533S0352-51390512533SThe gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutionsStamenković Ivica S.0Stamenković Olivera S.1Banković-Ilić Ivana B.2Lazić Miodrag L.3Veljković Vlada B.4Skala Dejan U.5Tehnološki fakultet, LeskovacTehnološki fakultet, LeskovacTehnološki fakultet, LeskovacTehnološki fakultet, LeskovacTehnološki fakultet, LeskovacTehnološko-metalurški fakultet, BeogradGas holdup was investigated in a gas-liquid and gas-liquid-solid reciprocating plate column (RPC) under various operation conditions. Aqueous carboxymethyl cellulose (sodium salt, CMC) solutions were used as the liquid phase, the solid phase was spheres placed into interplate spaces, and the gas phase was air. The gas holdup in the RPC was influenced by: the vibration intensity, i.e., the power consumption, the superficial gas velocity, the solids content and the rheological properties of the liquid phase. The gas holdup increased with increasing vibration intensity and superficial gas velocity in both the two- and three-phase system. With increasing concentration of the CMC PP 50 solution (Newtonian fluid), the gas holdup decreased, because the coalescence of the bubbles was favored by the higher liquid viscosity. In the case of the CMC PP 200 solutions (non-Newtonian liquids), the gas holdup depends on the combined influence of the rheological properties of the liquid phase, the vibration intensity and the superficial gas velocity. The gas holdup in the three-phase systems was greater than that in the two-phase ones under the same operating conditions. Increasing the solids content has little influence on the gas holdup. The gas holdup was correlated with the power consumption (either the time-averaged or total power consumption) and the superficial gas velocity.http://www.doiserbia.nb.rs/img/doi/0352-5139/2005/0352-51390512533S.pdfreciprocating plate columngas holdupmultiphase systemscarboxymethylcelulose |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Stamenković Ivica S. Stamenković Olivera S. Banković-Ilić Ivana B. Lazić Miodrag L. Veljković Vlada B. Skala Dejan U. |
spellingShingle |
Stamenković Ivica S. Stamenković Olivera S. Banković-Ilić Ivana B. Lazić Miodrag L. Veljković Vlada B. Skala Dejan U. The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions Journal of the Serbian Chemical Society reciprocating plate column gas holdup multiphase systems carboxymethylcelulose |
author_facet |
Stamenković Ivica S. Stamenković Olivera S. Banković-Ilić Ivana B. Lazić Miodrag L. Veljković Vlada B. Skala Dejan U. |
author_sort |
Stamenković Ivica S. |
title |
The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions |
title_short |
The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions |
title_full |
The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions |
title_fullStr |
The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions |
title_full_unstemmed |
The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions |
title_sort |
gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions |
publisher |
Serbian Chemical Society |
series |
Journal of the Serbian Chemical Society |
issn |
0352-5139 1820-7421 |
publishDate |
2005-01-01 |
description |
Gas holdup was investigated in a gas-liquid and gas-liquid-solid reciprocating plate column (RPC) under various operation conditions. Aqueous carboxymethyl cellulose (sodium salt, CMC) solutions were used as the liquid phase, the solid phase was spheres placed into interplate spaces, and the gas phase was air. The gas holdup in the RPC was influenced by: the vibration intensity, i.e., the power consumption, the superficial gas velocity, the solids content and the rheological properties of the liquid phase. The gas holdup increased with increasing vibration intensity and superficial gas velocity in both the two- and three-phase system. With increasing concentration of the CMC PP 50 solution (Newtonian fluid), the gas holdup decreased, because the coalescence of the bubbles was favored by the higher liquid viscosity. In the case of the CMC PP 200 solutions (non-Newtonian liquids), the gas holdup depends on the combined influence of the rheological properties of the liquid phase, the vibration intensity and the superficial gas velocity. The gas holdup in the three-phase systems was greater than that in the two-phase ones under the same operating conditions. Increasing the solids content has little influence on the gas holdup. The gas holdup was correlated with the power consumption (either the time-averaged or total power consumption) and the superficial gas velocity. |
topic |
reciprocating plate column gas holdup multiphase systems carboxymethylcelulose |
url |
http://www.doiserbia.nb.rs/img/doi/0352-5139/2005/0352-51390512533S.pdf |
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