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Changes in liquid hold‐up in foam and size of foam by perforated plates and contribution to mechanical foam‐breaking
Author(s) -
Kuni M.,
Onodera M.,
Hosokaz K.,
Yamagiwa K.,
Ohkawa A.
Publication year - 1994
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.5450720206
Subject(s) - metal foam , materials science , foam concrete , carbon nanofoam , composite material , foam fractionation , foam cell , chemistry , chemical engineering , porosity , engineering , pulmonary surfactant , biochemistry , cement , macrophage , in vitro
Changes in the liquid hold‐up, ϵ, and the diameter of d , of a foam that are induced by perforated plates (PPs) and the contribution of PPs to foam‐breaking were studied. A foaming system containing a dilute detergent solution in a column with mechanical agitation fitted with a rotating‐disk foam‐breaker (MFRD) was used. After the foam passed through the PPs, ϵ and d decreased and increased, respectively. The use of PPs to achieve a maximum reduction in ϵ and a maximum increase in d is confirmed. It is also demonstrated that use of PPs contributes not only to improving the foam‐breaking performance of the MFRD, but also to power savings.