INVESTIGATION OF PHASE INVERSION EFFECT ON MASS TRANSFER IN A CONTINUOUS MIXER-SETTLER

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SOHBATZADEH LONBAR H.; ABOU ALGHASEMI HOSSEIN; GHANADI MARAGHEH M.; KHAKPAI A.

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Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2008 | Volume:27 | Issue:3 Page(s): 11-23

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Title

INVESTIGATION OF PHASE INVERSION EFFECT ON MASS TRANSFER IN A CONTINUOUS MIXER-SETTLER

Author(s)

SOHBATZADEH LONBAR H. | ABOU ALGHASEMI HOSSEIN | GHANADI MARAGHEH M. | KHAKPAI A. | Issue Writer Certificate

Keywords

PHASE INVERSIONQ3

MASS TRANSFERQ2

MIXER-SETTLERQ3

HOLD UPQ2

AMBIVALENT REGIONQ3

Abstract

In this present paper effect of PHASE INVERSION on MASS TRANSFER in a horizontal MIXER-SETTLER is investigated. Experiments showed that with respect to chemical systems (Toluene/ Water/ Acetone) and (n-Butyl acetate/Water/Acetone), if water has been considered as a continuous phase, the amount of MASS TRANSFER and overall MASS TRANSFER coefficient are higher than the case of (toluene) or (n-butyl acetate) was as a continuous phase. Since PHASE INVERSION of experimental systems occurs in high-value of dispersed phase hold-up after PHASE INVERSION occurs, the amount of secondary dispersed phase hold-up declines sharply. Low dispersed phase HOLD UP cause’s double decline in amount of MASS TRANSFER. Also with comparison between overall MASS TRANSFER coefficients of presented systems, it is obvious that first system has larger drops in the same hold-up. Large drops of first system leads to eddy diffusion in MASS TRANSFER mechanism. While second system in most of the hold-up has molecular diffusion. Depiction of Sauter mean diameter profile versus hold-up showed that near the PHASE INVERSION point coalescence of drops speeds up. High speed of coalescence causes that the largest drops in dispersions occurs exactly before PHASE INVERSION point. Investigation on the effect of MASS TRANSFER phenomenon directing showed that when (c®d) MASS TRANSFER occurs, Marangoni effect causes production of larger drops, so that MASS TRANSFER and MASS TRANSFER coefficients in this case are higher than the case of opposite direction (d®c).

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APA: Copy

SOHBATZADEH LONBAR, H., ABOU ALGHASEMI, HOSSEIN, GHANADI MARAGHEH, M., & KHAKPAI, A.. (2008). INVESTIGATION OF PHASE INVERSION EFFECT ON MASS TRANSFER IN A CONTINUOUS MIXER-SETTLER. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), 27(3), 11-23. SID. https://sid.ir/paper/26133/en

Vancouver: Copy

SOHBATZADEH LONBAR H., ABOU ALGHASEMI HOSSEIN, GHANADI MARAGHEH M., KHAKPAI A.. INVESTIGATION OF PHASE INVERSION EFFECT ON MASS TRANSFER IN A CONTINUOUS MIXER-SETTLER. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)[Internet]. 2008;27(3):11-23. Available from: https://sid.ir/paper/26133/en

IEEE: Copy

H. SOHBATZADEH LONBAR, HOSSEIN ABOU ALGHASEMI, M. GHANADI MARAGHEH, and A. KHAKPAI, “INVESTIGATION OF PHASE INVERSION EFFECT ON MASS TRANSFER IN A CONTINUOUS MIXER-SETTLER,” NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), vol. 27, no. 3, pp. 11–23, 2008, [Online]. Available: https://sid.ir/paper/26133/en

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