MEMBRANE-BASED CONTINUOUS PHASE SEPARATION SYSTEM AND DEVICE SUITABLE FOR LOW FLOW RATES

Title:

MEMBRANE-BASED CONTINUOUS PHASE SEPARATION SYSTEM AND DEVICE SUITABLE FOR LOW FLOW RATES

Document Type and Number:

WIPO Patent Application WO/2020/230492

Kind Code:

A1

Abstract:

Provided is a continuous liquid separation method in which an emulsion comprising a hydrophilic liquid phase and a hydrophobic liquid phase is demulsified to obtain a demulsified liquid; the optical characteristics of the demulsified liquid are measured; a membrane is used to separate the demulsified liquid into a membrane-permeable liquid and a membrane-impermeable liquid, said membrane being easy for the hydrophobic liquid phase to permeate and difficult for the hydrophilic liquid phase to permeate, or, said membrane being easy for the hydrophilic liquid phase to permeate and difficult for the hydrophobic liquid phase to permeate; the optical characteristics of the membrane-permeable liquid are measured; a time-series recording of the measured values of the optical characteristics of the demulsified liquid and the measured values of the optical characteristics of the membrane-permeable liquid is performed; and the state of the demulsification or the membrane separation is diagnosed on the basis of the time-series recording. Also provided is an apparatus for the method.

Inventors:

KAJITA SATOSHI (JP)

Application Number:

PCT/JP2020/015995

Publication Date:

November 19, 2020

Filing Date:

April 09, 2020

Export Citation:

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Assignee:

NISSO ENG CO LTD (JP)

International Classes:

B01D17/00; B01D17/022; B01D17/04; B01D61/00

Foreign References:

JP2017100067A	2017-06-08
JP2014526957A	2014-10-09
US20090183871A1	2009-07-23
JP2019018192A	2019-02-07
JP2016064404A	2016-04-28
JP2006175424A	2006-07-06
JPH0947294A	1997-02-18
JPS62225207A	1987-10-03
JP2019111503A	2019-07-11

Other References: