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A multiphase separation method, device and application thereof

A multi-phase separation and porous membrane technology, which is applied in the direction of semipermeable membrane separation, chemical instruments and methods, membrane technology, etc., can solve the problems of limited application, lack of responsiveness of liquid composite membrane system, etc., to increase the scope of application, enrich the The effect of multiphase separation technology

Active Publication Date: 2021-06-15
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the lack of responsiveness of the liquid composite membrane system limits its further application in the fields of material controllable transport and multiphase separation.

Method used

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  • A multiphase separation method, device and application thereof
  • A multiphase separation method, device and application thereof
  • A multiphase separation method, device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1 - Marangoni flow induced by thermal field

[0039] Select two solid materials with large differences in thermal conductivity (including but not limited to copper and silicon dioxide, copper and conductive glass), now take conductive glass and copper as an example, deposit copper particles at specific positions on the surface of conductive glass with array holes , and combined with specific functional liquids (perfluorinated lubricant Krytox 103, simethicone, paraffin, etc.) to form a heat-responsive liquid composite film6. Taking gas-liquid separation as an example, according to figure 1 In the manner shown, the heat-responsive liquid composite membrane 6 is sealed, and a certain pressure is input to the area containing copper particles in the input channel 1 through a syringe pump (higher than the pressure of the gas phase passing through the membrane after applying the thermal field, lower than that before the thermal field is applied) The gas-liquid mixture ...

Embodiment 2

[0040] Example 2 - Light and heat induced Marangoni flow

[0041] Select a functional liquid whose surface tension changes greatly with temperature (including but not limited to Krytox 103, polydimethylsiloxane), inject it into the solid porous membrane, and form a photoresponsive liquid composite membrane 6 . Taking gas-liquid separation as an example, according to figure 1 In the manner shown, the photoresponsive liquid composite membrane 6 is sealed, and the gas-liquid mixture 1-1, 1-2 with a certain pressure ΔP is input into the input channel 1 through a syringe pump. Such as image 3 It can be seen that when the light source is turned off, neither the gas phase nor the liquid phase can pass through the liquid composite membrane 6, and both the gas and liquid flow out from the output channel 2, and the separation of the gas phase and the liquid phase cannot be realized; when the light source is turned on, if figure 2 As shown, the heat generated when light is irradiated...

Embodiment 3

[0042] Example 3 - Light and heat induced Marangoni flow

[0043] Select a porous membrane with good photothermal performance (including but not limited to stainless steel metal mesh, carbon-based porous membrane), and compound it with a specific functional liquid (Krytox 103, simethicone, paraffin, etc.) to form a photoresponsive liquid Composite film6. Taking gas-liquid separation as an example, according to figure 1 In the manner shown, the photoresponsive liquid composite membrane 6 is sealed, and the gas-liquid mixture 1-1, 1-2 with a certain pressure ΔP is input into the input channel 1 through a syringe pump. Such as image 3 It can be seen that when the light source is turned off, neither the gas phase nor the liquid phase can pass through the liquid composite membrane 6, and both the gas and liquid flow out from the output channel 2, and the separation of the gas phase and the liquid phase cannot be realized; when the light source is turned on, if figure 2 As show...

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PUM

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Abstract

The invention discloses a multiphase separation method, device and application thereof. The device involved in the present invention includes a porous membrane and a liquid composite membrane composed of a functional liquid, which is sealed in the device by a sealing material and a clamping device. One side of the device is provided with at least two channel openings; the other side is provided with at least one Channel port; the first channel port is connected to the first input channel, the second channel port is connected to the first output channel, and the third channel port is connected to the second output channel; between the first input channel and the first output channel and between the liquid composite film and the second channel A connection channel is provided between the two output channels. During the specific implementation of the device of the present invention, based on the action mechanism of the liquid composite membrane, the change of the surface tension of the functional liquid caused by external stimuli and the Marangoni flow are used to change the properties of the transported material through the membrane, and the multi-phase substance is regulated in combination with the liquid composite membrane The difference in properties makes the two-phase substances flow out from different output channels.

Description

technical field [0001] The invention relates to the application of a liquid composite membrane technology with Marangoni flow in the field of multiphase separation, and belongs to the field of functional materials and devices. Background technique [0002] Membrane science and technology is a new type of high-efficiency technology emerging from the interdisciplinary integration and interpenetration in recent years. It is closely related to our daily life and has been widely used in water resource utilization, ecological environment, petrochemical industry, clean energy and other fields. Has been widely used. With the continuous development of membrane science and technology, people have put forward higher requirements for the functional controllability and durability of porous membranes. How to improve the durability and resistance of membrane materials while realizing the selectivity and responsiveness of porous membranes Fouling is a major issue that needs to be solved ur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/00
CPCB01D61/00
Inventor 侯旭韩雨航陈柏屹张运茂盛智芝
Owner XIAMEN UNIV
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