GAS HOLDUP AND MASS-TRANSFER CHARACTERISTICS OF CARBOXYMETHYL CELLULOSE SOLUTIONS IN A BUBBLE COLUMN WITH A RADIAL GAS SPARGER

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dc.contributor.authorRYU, HWko
dc.contributor.authorChang, YongKeunko
dc.contributor.authorKim, Sang Doneko
dc.date.accessioned2008-05-09T07:20:32Z-
dc.date.available2008-05-09T07:20:32Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued1993-01-
dc.identifier.citationBIOPROCESS ENGINEERING, v.8, no.5-6, pp.271 - 277-
dc.identifier.issn0178-515X-
dc.identifier.urihttp://hdl.handle.net/10203/4467-
dc.description.abstractThe gas phase holdup and mass transfer characteristics of carboxymethyl cellulose (CMC) solutions in a bubble column having a radial gas sparger have been determined and a new flow regime map has been proposed. The gas holdup increases with gas velocity in the bubbly flow regime, decreases in the churn-turbulent flow regime, and increases again in the slug flow regime. The volumetric mass transfer coefficient (k(L)a) significantly decreases with increasing liquid viscosity. The gas holdup and k(L)a values in the present bubble column of CMC solutions are found to be much higher than those in bubble columns or external-loop airlift columns with a plate-type sparger. The obtained gas phase holdup (epsilon(g)) and k(L)a data have been correlated with pertinent dimensionless groups in both the bubbly and the chum-turbulent flow regimes.-
dc.description.sponsorshipMinistry of Science and Technology of Korea, Bioprocess Engineering Research Centeren
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherSPRINGER VERLAG-
dc.subjectNON-NEWTONIAN SOLUTIONS-
dc.subject3-PHASE FLUIDIZED-BED-
dc.subjectAIRLIFT REACTOR-
dc.subjectHYDRODYNAMICS-
dc.subjectOXYGEN-
dc.subjectLIQUID-
dc.subjectBIOREACTORS-
dc.subjectABSORPTION-
dc.subjectBREAKERS-
dc.titleGAS HOLDUP AND MASS-TRANSFER CHARACTERISTICS OF CARBOXYMETHYL CELLULOSE SOLUTIONS IN A BUBBLE COLUMN WITH A RADIAL GAS SPARGER-
dc.typeArticle-
dc.identifier.wosidA1993KC75300012-
dc.type.rimsART-
dc.citation.volume8-
dc.citation.issue5-6-
dc.citation.beginningpage271-
dc.citation.endingpage277-
dc.citation.publicationnameBIOPROCESS ENGINEERING-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorChang, YongKeun-
dc.contributor.localauthorKim, Sang Done-
dc.contributor.nonIdAuthorRYU, HW-
dc.type.journalArticleArticle-
dc.subject.keywordPlusNON-NEWTONIAN SOLUTIONS-
dc.subject.keywordPlus3-PHASE FLUIDIZED-BED-
dc.subject.keywordPlusAIRLIFT REACTOR-
dc.subject.keywordPlusHYDRODYNAMICS-
dc.subject.keywordPlusOXYGEN-
dc.subject.keywordPlusLIQUID-
dc.subject.keywordPlusBIOREACTORS-
dc.subject.keywordPlusABSORPTION-
dc.subject.keywordPlusBREAKERS-
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