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Some characteristics of a sparged agitated vessel under foaming — Mechanical control of foaming —
Author(s) -
Ohkawa A.,
Sugiyama K.,
Sakai N.,
Imai H.,
Endoh K.
Publication year - 1984
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450620409
Subject(s) - impeller , materials science , foaming agent , volume (thermodynamics) , mechanics , composite material , mechanical engineering , engineering , thermodynamics , porosity , physics
Foam‐breaking with a rotating disk mechanical foam‐breaker (MFRD) was studied for a foaming system containing a diluted detergent solution in a laboratory sparged agitated vessel. The change of the foam‐breaking capacity of the MFRD by varying the air sparge rate, the working volume and the impeller speed or the disk diameter was measured. Based on these measurements, empirical equations are presented for predicting the critical foam‐breaking regions of the MFRD fitted with the agitated vessel. The operational range where foam‐breaking with the MFRD can be carried out effectively and economically is also discussed.