Gas-liquid-liquid extraction in a novel rotating microchannel extractor

doi:10.1016/j.cjche.2020.05.025

Abstract

Abstract: In this work, a novel rotating microchannel extractor (RME) is designed and further used for the extraction of chromium (III) from water. Unexpectedly, the micro-extraction had the same effect as carrying out 2.9-stage cross-flow extractions. Various factors, including the gas intake methods, gas intake quantity (Q_g), distance between inner rotor and outer wall (D), rotational inner rotor speed (R) and volumetric flow rate (Q_a, Q_o), were selected to investigate their effect on the extraction efficiency (η) thoroughly. The relation map of η with Wea and We_o-g for RME provides a comprehension for the gas-liquid-liquid extraction process in this RME system.

Key words: Microextraction, Gas-liquid-liquid, Rotating microchannel extractor, Mass transfer, Extraction efficiency

摘要： In this work, a novel rotating microchannel extractor (RME) is designed and further used for the extraction of chromium (III) from water. Unexpectedly, the micro-extraction had the same effect as carrying out 2.9-stage cross-flow extractions. Various factors, including the gas intake methods, gas intake quantity (Q_g), distance between inner rotor and outer wall (D), rotational inner rotor speed (R) and volumetric flow rate (Q_a, Q_o), were selected to investigate their effect on the extraction efficiency (η) thoroughly. The relation map of η with Wea and We_o-g for RME provides a comprehension for the gas-liquid-liquid extraction process in this RME system.

关键词: Microextraction, Gas-liquid-liquid, Rotating microchannel extractor, Mass transfer, Extraction efficiency

Rui Ma, Chunxin Fan, Yubin Wang, Jianhong Luo, Jun Li, Sridhar Komarneni. Gas-liquid-liquid extraction in a novel rotating microchannel extractor[J]. Chinese Journal of Chemical Engineering, 2020, 28(10): 2523-2532.

Rui Ma, Chunxin Fan, Yubin Wang, Jianhong Luo, Jun Li, Sridhar Komarneni. Gas-liquid-liquid extraction in a novel rotating microchannel extractor[J]. 中国化学工程学报, 2020, 28(10): 2523-2532.

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