TY - JOUR
T1 - Gas-liquid-liquid flow patterns and extraction in a rotating microchannel extractor
AU - Fan, Chunxin
AU - Ma, Rui
AU - Wang, Yubin
AU - Luo, Jianhong
AU - Komarneni, Sridhar
N1 - Publisher Copyright:
© 2020 Canadian Society for Chemical Engineering
PY - 2021/10
Y1 - 2021/10
N2 - The flow patterns of gas-liquid-liquid three-phase fluids in the rotating microchannel extractor (RME) were studied in this paper. The kerosene-water system without mass transfer and the 2%P507-22%NaH2PO4 system with mass transfer were considered. The influence of interfacial tension, microchannel structure, and rotation rate on three-phase flow patterns were investigated. Eight different flow patterns such as droplet-continuous flow, long droplet-continuous flow, filiform parallel-continuous flow, filiform parallel-filiform parallel flow, small droplet-continuous flow, filiform parallel-small droplet flow, small droplet-small droplet flow, and continuous-filiform parallel flow were observed. The results showed that the proposed universal flow pattern map can effectively predict the flow patterns of the two systems and the small droplet-small droplet flow has the best effect of extracting Fe3+ from the 2%P507-22%NaH2PO4 system. The traditional first-order equilibrium extraction efficiency was 102% while the percentage extraction was up to 85% (14.4 mg/L) after one stage extraction and about 97.9% (2.0 mg/L) after two-stage extraction.
AB - The flow patterns of gas-liquid-liquid three-phase fluids in the rotating microchannel extractor (RME) were studied in this paper. The kerosene-water system without mass transfer and the 2%P507-22%NaH2PO4 system with mass transfer were considered. The influence of interfacial tension, microchannel structure, and rotation rate on three-phase flow patterns were investigated. Eight different flow patterns such as droplet-continuous flow, long droplet-continuous flow, filiform parallel-continuous flow, filiform parallel-filiform parallel flow, small droplet-continuous flow, filiform parallel-small droplet flow, small droplet-small droplet flow, and continuous-filiform parallel flow were observed. The results showed that the proposed universal flow pattern map can effectively predict the flow patterns of the two systems and the small droplet-small droplet flow has the best effect of extracting Fe3+ from the 2%P507-22%NaH2PO4 system. The traditional first-order equilibrium extraction efficiency was 102% while the percentage extraction was up to 85% (14.4 mg/L) after one stage extraction and about 97.9% (2.0 mg/L) after two-stage extraction.
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U2 - 10.1002/cjce.23975
DO - 10.1002/cjce.23975
M3 - Article
AN - SCOPUS:85101468562
SN - 0008-4034
VL - 99
SP - S668-S680
JO - Canadian Journal of Chemical Engineering
JF - Canadian Journal of Chemical Engineering
IS - S1
ER -