Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors

The ratio of draft tube to reactor diameters is of decisive importance for the operation behavior of air lift loop reactors. The influence of draft tube geometry was investigated with respect to oxygen mass transfer and mixing time. The diameter ratio was varied between 0.33 and 0.80. The measuremen...

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Auteurs principaux:	Laith S. S. Al-Kuffe, Ali Abdul-Rahman Al-Azzi
Format:	article
Langue:	EN
Publié:	Al-Khwarizmi College of Engineering – University of Baghdad 2010
Sujets:	Draft tube loop reactors mass transfer mixing time. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Accès en ligne:	https://doaj.org/article/a1635e0c624e46c6a0ed89aa8906ea44
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id	oai:doaj.org-article:a1635e0c624e46c6a0ed89aa8906ea44
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spelling	oai:doaj.org-article:a1635e0c624e46c6a0ed89aa8906ea442021-12-02T05:01:20ZInfluence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors1818-1171https://doaj.org/article/a1635e0c624e46c6a0ed89aa8906ea442010-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=2299https://doaj.org/toc/1818-1171The ratio of draft tube to reactor diameters is of decisive importance for the operation behavior of air lift loop reactors. The influence of draft tube geometry was investigated with respect to oxygen mass transfer and mixing time. The diameter ratio was varied between 0.33 and 0.80. The measurements were performed in two loop reactors with liquid capacities of 11.775 and 26.49 liters using aqueous with solutions of different coalescence behavior. The results show that there is no single diameter ratio which would produce most favorable conditions for the two process parameters. With respect to the more important requirements of aerobic cultures, i.e high oxygen mass transfer and efficient mixing, a diameter ratio between 0.5 and 0.6 is recommended. If high liquid velocities in the draft tube are required a ratio of 0.6 should be used. Laith S. S. Al-KuffeAli Abdul-Rahman Al-AzziAl-Khwarizmi College of Engineering – University of BaghdadarticleDraft tubeloop reactorsmass transfermixing time.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 6, Iss 2, Pp 21-32 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Draft tube loop reactors mass transfer mixing time. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Draft tube loop reactors mass transfer mixing time. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Laith S. S. Al-Kuffe Ali Abdul-Rahman Al-Azzi Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors
description	The ratio of draft tube to reactor diameters is of decisive importance for the operation behavior of air lift loop reactors. The influence of draft tube geometry was investigated with respect to oxygen mass transfer and mixing time. The diameter ratio was varied between 0.33 and 0.80. The measurements were performed in two loop reactors with liquid capacities of 11.775 and 26.49 liters using aqueous with solutions of different coalescence behavior. The results show that there is no single diameter ratio which would produce most favorable conditions for the two process parameters. With respect to the more important requirements of aerobic cultures, i.e high oxygen mass transfer and efficient mixing, a diameter ratio between 0.5 and 0.6 is recommended. If high liquid velocities in the draft tube are required a ratio of 0.6 should be used.
format	article
author	Laith S. S. Al-Kuffe Ali Abdul-Rahman Al-Azzi
author_facet	Laith S. S. Al-Kuffe Ali Abdul-Rahman Al-Azzi
author_sort	Laith S. S. Al-Kuffe
title	Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors
title_short	Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors
title_full	Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors
title_fullStr	Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors
title_full_unstemmed	Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors
title_sort	influence of draft tube diameter on operation behaviorof air lift loop reactors
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2010
url	https://doaj.org/article/a1635e0c624e46c6a0ed89aa8906ea44
work_keys_str_mv	AT laithssalkuffe influenceofdrafttubediameteronoperationbehaviorofairliftloopreactors AT aliabdulrahmanalazzi influenceofdrafttubediameteronoperationbehaviorofairliftloopreactors
_version_	1718400845520830464

Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors

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