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How to separate an emulsion? 

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Emulsions can be separated using various methods. Gravity is the main driving force for the separation of the two liquid phases, but additional mechanisms are often required to enhance the separation rate . One method involves applying a bias voltage to electrodes in a device, which causes droplet migration, flattening of large droplets, and reduced droplet surface tension . Another method involves using an emulsion separation device with ultrasonic oscillation elements and ultrasound reflection members to facilitate separation . Additionally, an emulsion breaking device can be used, which applies electric fields to deform emulsion droplets and promote the collision polymerization of adjacent droplets, leading to the formation of large droplets that can be settled and separated from the emulsion . Understanding the factors that govern emulsion formation, stabilization, and separation is crucial for designing effective oil-water separators .

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The paper does not provide information on how to separate an emulsion. The paper discusses the classification and stability assessment of emulsions, but does not provide details on the separation process.
The paper provides a method for separating emulsion by using an emulsion breaking device that applies electric fields and a microchannel to deform emulsion droplets and promote their collision polymerization, resulting in the formation of large droplets that can be settled and separated from the emulsion.
The paper provides an emulsion separation method using an emulsion separation device with an ultrasonic oscillation element and an ultrasound reflection member to separate the emulsion.
The paper provides a method to separate an emulsion in a liquid lens device by applying a bias voltage to electrodes, applying an oscillating actuation voltage waveform, and applying an oscillating excitation voltage waveform.
Book ChapterDOI
01 Jan 2023
The paper discusses various methods to separate emulsions in crude oil processing, including heating, mechanical internals, and chemical and electrostatic demulsification techniques.

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