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Membrane emulsification system and method with high efficiency and low energy consumption

A low-energy, high-efficiency technology, applied in the field of membrane emulsification, can solve problems such as non-conformance, achieve the effect of avoiding noise, simplifying equipment, and improving quality and effect

Active Publication Date: 2022-05-10
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to prepare a uniform emulsion, the process of passing the dispersed phase liquid through the membrane pores requires additional energy input such as stirring, which does not conform to the current concept of green and sustainable development

Method used

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  • Membrane emulsification system and method with high efficiency and low energy consumption
  • Membrane emulsification system and method with high efficiency and low energy consumption
  • Membrane emulsification system and method with high efficiency and low energy consumption

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Embodiment 1

[0044] When using this emulsification system, follow the following rules: figure 1 The emulsification unit shown is based on this. The device of the present invention mainly includes a liquid-based porous membrane unit 1 , a main body 5 , a dispersed phase channel 6 and a continuous phase chamber 7 . The liquid-based porous membrane unit 1 includes a functional liquid 11 and a porous membrane 12 , and the functional liquid 11 at least partially infiltrates the porous membrane 12 . The main body 5 includes two clamping pieces 51 and a sealing material 52 , and the sealing material 52 cooperates with the part where the two clamping pieces 51 are connected to achieve a sealing effect. The liquid-based porous membrane unit 1 is located in the cavity, and the liquid-based porous membrane unit 2 is connected with the dispersed phase inlet channel 4 and the continuous phase chamber 3 .

[0045]The invention provides an emulsification method with high efficiency and low energy consu...

Embodiment 2

[0049] The invention discloses an emulsification method for preparing dodecane-water emulsion by anionic surfactant sodium lauryl sulfate. refer to figure 1 Based on the emulsification device shown, a nylon membrane (with a pore size of 1 μm) soaked in perfluoropolyether lubricating oil K103 was selected as the liquid-based porous membrane unit 1 . The selected concentration is 1×10 -3 The mol / L sodium lauryl sulfate aqueous solution is used as the continuous phase and is added in the continuous phase chamber 7. Dodecane was selected as the dispersed phase, passed through the dispersed phase channel 6 at a flow rate of 0.5 mL / min, and entered into the continuous phase chamber 7 to form an O / W emulsion. Such as image 3 As shown, the pressure threshold of the traditional nylon membrane is 38kPa, while the pressure threshold of the functional liquid infiltrated nylon membrane is 30kPa. Through calculation, 21% of the input energy can be saved, that is, the energy consumption ...

Embodiment 3

[0051] The invention discloses an emulsification method for preparing dodecane-water emulsion from nonionic surfactant glycolic acid ethoxy oil ether. refer to figure 1 Based on the emulsification device shown, a nylon membrane (with a pore size of 1 μm) soaked in perfluoropolyether lubricating oil K103 was selected as the liquid-based porous membrane unit 1 . The selected concentration is 0.5×10 -3 The mol / L glycolic acid ethoxy oleyl ether aqueous solution is used as the continuous phase and added to the continuous phase chamber 7. Dodecane was selected as the dispersed phase, passed through the dispersed phase channel 6 at a flow rate of 0.5 mL / min, and entered into the continuous phase chamber 7 to form an O / W emulsion. Such as Figure 4 As shown, both the traditional nylon membrane and the functional liquid soaked nylon membrane can form O / W type emulsion. The pressure threshold of the traditional nylon membrane is 58.4kPa, while the pressure threshold of the functiona...

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Abstract

The invention discloses a membrane emulsification system with high efficiency and low energy consumption, which comprises a liquid-based porous membrane unit, a dispersed phase channel and a continuous phase chamber, and the liquid-based porous membrane unit is arranged in the communication path between the dispersed phase channel and the continuous phase chamber; The liquid-based porous membrane unit includes a functional liquid and a porous membrane, and the functional liquid at least partially infiltrates the porous membrane, and the dispersed phase liquid is in contact with the liquid-based porous membrane during the process of entering the continuous phase chamber through the liquid-based porous membrane unit from the dispersed phase channel. A liquid-liquid interface is formed between the cells. The invention also discloses its emulsification method. The invention can significantly improve the emulsification quality, reduce energy consumption, and has universal applicability.

Description

technical field [0001] The invention relates to the technical field of membrane emulsification, in particular to a membrane emulsification system and method with high efficiency and low energy consumption. Background technique [0002] Emulsification technology has important application value in food, daily chemical, petroleum, paint, industrial cleaning and other fields. For example, ice cream, margarine, cosmetics, oil field displacement, etc. all require emulsification technology. At present, the reported emulsification technologies include emulsification methods relying on mechanical stirring, ultrasonic dispersion emulsification technology, high-pressure homogenization technology, microfluidic droplet technology, and membrane emulsification technology. The mechanical stirring method is the most commonly used emulsification technology in factories because of its simple operation, but the particle size of the emulsion droplets prepared by it is usually not uniform, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F25/452B01F23/41
CPCB01F23/4105B01F23/45B01F25/4521
Inventor 侯旭余诗洁樊漪
Owner XIAMEN UNIV
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