Mass-Transfer Characteristics of Air- Suction Type Fermentors

Liquid-side mass-transfer coefficients (KLa) were measured in air-suction type fermentors using physical absorption of oxygen. A fermentor of 0. 5 m i.d. was used with a working capacity of 60 liters of liquid. Tap water was used as the liquid phase, and air was used as the gas phase. The bioreact...

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Autor principal:	Alaa K. M.
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2019
Materias:	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/912cf7af182040b9ac3a6b32434bb30d
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spelling	oai:doaj.org-article:912cf7af182040b9ac3a6b32434bb30d2021-12-02T10:41:22ZMass-Transfer Characteristics of Air- Suction Type Fermentors1818-11712312-0789https://doaj.org/article/912cf7af182040b9ac3a6b32434bb30d2019-03-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/596https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 Liquid-side mass-transfer coefficients (KLa) were measured in air-suction type fermentors using physical absorption of oxygen. A fermentor of 0. 5 m i.d. was used with a working capacity of 60 liters of liquid. Tap water was used as the liquid phase, and air was used as the gas phase. The bioreactor mixing system consists of shrouded-disk/curved-blade turbine with six evacuated bending blades. The effect of liquid submergence (S) was investigated. Further, the effects of the ratio of the impeller diameter (D) to the tank diameter (T), and the clearance of the impeller from the tank bottom(C) were also studied. The agitation speed (N) was varied in the range of 50-800 rpm. It was found that the value of KLa increased as the impeller diameter increased, while it was decreased continuously with increasing the clearance. the effect of impeller submergence on the value of mass transfer coefficient (KLa) is not much pronounced. Suitable correlation was developed for estimating mass transfer coefficient (KLa) in this type of bioreactors. Alaa K. M.Al-Khwarizmi College of Engineering – University of BaghdadarticleChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 4, Iss 3 (2019)
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 Alaa K. M. Mass-Transfer Characteristics of Air- Suction Type Fermentors
description	Liquid-side mass-transfer coefficients (KLa) were measured in air-suction type fermentors using physical absorption of oxygen. A fermentor of 0. 5 m i.d. was used with a working capacity of 60 liters of liquid. Tap water was used as the liquid phase, and air was used as the gas phase. The bioreactor mixing system consists of shrouded-disk/curved-blade turbine with six evacuated bending blades. The effect of liquid submergence (S) was investigated. Further, the effects of the ratio of the impeller diameter (D) to the tank diameter (T), and the clearance of the impeller from the tank bottom(C) were also studied. The agitation speed (N) was varied in the range of 50-800 rpm. It was found that the value of KLa increased as the impeller diameter increased, while it was decreased continuously with increasing the clearance. the effect of impeller submergence on the value of mass transfer coefficient (KLa) is not much pronounced. Suitable correlation was developed for estimating mass transfer coefficient (KLa) in this type of bioreactors.
format	article
author	Alaa K. M.
author_facet	Alaa K. M.
author_sort	Alaa K. M.
title	Mass-Transfer Characteristics of Air- Suction Type Fermentors
title_short	Mass-Transfer Characteristics of Air- Suction Type Fermentors
title_full	Mass-Transfer Characteristics of Air- Suction Type Fermentors
title_fullStr	Mass-Transfer Characteristics of Air- Suction Type Fermentors
title_full_unstemmed	Mass-Transfer Characteristics of Air- Suction Type Fermentors
title_sort	mass-transfer characteristics of air- suction type fermentors
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2019
url	https://doaj.org/article/912cf7af182040b9ac3a6b32434bb30d
work_keys_str_mv	AT alaakm masstransfercharacteristicsofairsuctiontypefermentors
_version_	1718396841161129984

Mass-Transfer Characteristics of Air- Suction Type Fermentors

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