'Influence of Draft Tube Diameter on Operation Behavior of 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 measureme...

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Autores principales:	Ali Abdul-Rahman Al-Azzi, Laith S. S. Al-Kuffe
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2010
Materias:	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/c045653b5e9048b7bb410c0f9daf47c2
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id	oai:doaj.org-article:c045653b5e9048b7bb410c0f9daf47c2
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spelling	oai:doaj.org-article:c045653b5e9048b7bb410c0f9daf47c22021-12-02T04:46:21Z'Influence of Draft Tube Diameter on Operation Behavior of Air Lift Loop Reactors1818-11712312-0789https://doaj.org/article/c045653b5e9048b7bb410c0f9daf47c22010-06-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/486https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 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. Ali Abdul-Rahman Al-AzziLaith S. S. Al-KuffeAl-Khwarizmi College of Engineering – University of BaghdadarticleChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 6, Iss 2 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Ali Abdul-Rahman Al-Azzi Laith S. S. Al-Kuffe 'Influence of Draft Tube Diameter on Operation Behavior of 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	Ali Abdul-Rahman Al-Azzi Laith S. S. Al-Kuffe
author_facet	Ali Abdul-Rahman Al-Azzi Laith S. S. Al-Kuffe
author_sort	Ali Abdul-Rahman Al-Azzi
title	'Influence of Draft Tube Diameter on Operation Behavior of Air Lift Loop Reactors
title_short	'Influence of Draft Tube Diameter on Operation Behavior of Air Lift Loop Reactors
title_full	'Influence of Draft Tube Diameter on Operation Behavior of Air Lift Loop Reactors
title_fullStr	'Influence of Draft Tube Diameter on Operation Behavior of Air Lift Loop Reactors
title_full_unstemmed	'Influence of Draft Tube Diameter on Operation Behavior of Air Lift Loop Reactors
title_sort	'influence of draft tube diameter on operation behavior of air lift loop reactors
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2010
url	https://doaj.org/article/c045653b5e9048b7bb410c0f9daf47c2
work_keys_str_mv	AT aliabdulrahmanalazzi influenceofdrafttubediameteronoperationbehaviorofairliftloopreactors AT laithssalkuffe influenceofdrafttubediameteronoperationbehaviorofairliftloopreactors
_version_	1718401068216352768

'Influence of Draft Tube Diameter on Operation Behavior of Air Lift Loop Reactors

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