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Mass Transfer in an Airlift Reactor with a Net Draft Tube
Author(s) -
Wu WenTeng,
Wu JiumnYih,
Jong JianZhong
Publication year - 1992
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1021/bp00017a015
Subject(s) - draft tube , airlift , mass transfer , mass transfer coefficient , tube (container) , chemistry , mechanics , analytical chemistry (journal) , materials science , chromatography , bioreactor , composite material , physics , organic chemistry
Gas–liquid mass transfer in an airlift reactor with net draft tube is investigated. The effects of both the ratio of draft tube to reactor diameter and the reactor pressure on oxygen transfer are considered. The value of the volumetric mass transfer coefficient, k L a , increases with a decreasing diameter ratio at higher air flow rates. The correlation of volumetric mass transfer coefficient with respect to the true superficial air velocity under different reactor pressures is determined. The k L a value decreases with increasing reactor pressure.