Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/1278

TitleEffect of liquid-phase surface tension on hydrodynamics of a three-phase airlift reactor with an enlarged degassing zone
Author(s)Freitas, Carla Maria Duarte de
Teixeira, J. A.
Issue date1998
PublisherSpringer Verlag
JournalBioprocess Engineering
Citation“Bioprocess Engineering”. ISSN 0178-515X. 19:6 (1998) 451-457.
Series/Report no.1998;12
Abstract(s)The effect of the addition of ethanol (10 g/l) to the liquid-phase on gas and solids holdup, circulation and mixing times and interstitial liquid velocity in a threephase airlift reactor was investigated. The airlift reactor (60 l) is of the concentric draught-tube type with an enlarged degassing zone. Ca-alginate beads were used as solid-phase and airflow rate (from 1.9 to 90.2 l/min) and solids loading (0-30% (v/v)) were manipulated. Riser and downcomer gas holdup were found to increase with the addition of ethanol, leading to a decrease on the relative solids holdup. The presence of ethanol seems to have no influence on the circulation time. On the other hand, mixing time variation depends on the solids loading and airflow rate. Riser and downcomer interstitial liquid velocity are lower for ethanol solution than for water.
TypeArticle
URIhttp://hdl.handle.net/1822/1278
DOI10.1007/s004490050547
ISSN0178-515X
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

Files in This Item:
File Description SizeFormat 
1998-12[1].pdf268,98 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID