FOAMSCAN™ Foam Analyzers

A complete range of Instruments for Foam Study

Liquid foams are ubiquitous in various industrial processes and in our everyday lives. Being able to generate a controlled liquid foam (geometrical structure, liquid fraction) and understanding the phenomena responsible of its destabilization is hence crucial to optimize its properties.

These properties depend on the specific parameters of foam:

  • Liquid Fraction:  liquid quantity compared to foam volume

  • Size of bubbles: from micrometer to centimeter

  • Polydispersity: distribution of bubble sizes

There are several Foam characterization methods from most common that only measure Foam height to most complex. Our FOAMSCAN™ range of instruments integrates multiscale liquid foams’ characterization methods that will help you characterize foam properties easily and precisely, saving valuable time and money in foaming products formulating.

Full range of Measurements

All along the experiment

  • Volume of foam / liquid

  • Liquid fraction (Drainage)

  • Foam Density / Stability

  • Bubble Size and distribution analysis

During the foam formation

  • Capacity of Foam

  • Index Bikerman

Since end of foaming

  • Capacity of Foam

  • Index Bikerman

  • Expansion coefficient

  • Conductance

  • Foam maximum density

  • Foam stability index

For Lots of Applications...

Fuel formulation: Foamability of fuel, defoamer testing.

Crude oil: Foamability by gas injection and depressurization, defoamer testing.

Cosmetics: foam texture depending on liquid fraction and bubble size, foam stability.

Sodas, beer, Champagne: control of foam by depressurization or when pouring a glass.

Environment: Foam study for material extraction from soil, decontaminating foam study.

Chemistry: Anti-Foam for manufacturing products, detergents, solid foam properties (cement).

Several foam generation methods

Different methods can be used to generate a liquid foams

  • Gas Injection in a liquid through a porous media

  • Mechanical stirring: mixer, shaker..

  • Liquid recirculation

  • Depressurization: Sodas, Oil and Gas...

  • Chemical or Biological reactions: Latex, polyurethane, yeasts...

Energy input is required but not sufficient, Surfactants play a key role on the foamability of a solution.​

Multi-scale image analysis software

  • Software measures precisely the volume of foam.

  • Liquid fraction and liquid volume are determined in real time from the conductivity electrodes.

  • Cell Size Analysis software measures bubbles 'size and distribution.

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​Software controls all measurement parameters

  • Gas flow rate / Agitation speed

  • Temperature up to 120°C

  • Pressure up to 8bars

Foamscan™ - Foam generation by Gas Injection

The Foamscan is designed to characterize foam properties (generation and stability). Foam is generated by injecting some gas (Air, N₂, O₂, CO₂...) through the liquid.


The software controls the gas flow rate and the foam volume is determined in real time by image analysis using a CCD camera. Liquid fraction and volume are determined in real time with the conductivity electrodes. CSA software analyses the size and distribution of the bubbles.

The measuring tube is chosen depending on the applications that are studied:

  • equipped with conductivity electrodes to measure the liquid fraction of aqueous foams in real time

  • with a double glass wall to control the temperature up to 90 °C during experiment ( with optional circulating bath)

  • equipped with 4 prisms to adapt to the Cell Size Analysis (CSA) option

Applications

  • Foamability: shampoo, cream, coffee, beer, additives, formulation etc...

  • Scientific correlation with sensorial test

  • Improve formula and surfactants' screening

  • Foams for cleaning and detergents

  • Firefighting foams

  • Sparkling products

  • Flotation as a method for separating solids

  • Foam-reducing agents

Options

  • Automatic Cleaning

  • Size of the bubbles (CSA)

  • Stirring

  • Sampler (Automatisation of the device) 

Foamspin™ - Foam generation by Stirring

All values measured are the same as values measured with the Foamscan. Only the foam generation mode is different. 

 

This instrument measures the ability of a liquid to generate foam by direct or indirect mechanical stirring. A set of rotating blades produces foam under the control of the apparatus' software. The maximum rotation speed of the blades is 6 000RPM, and depends on product viscosity.

The software controls the stirring rate and the foam volume is determined in real time by image analysis using a CCD camera. Liquid fraction and volume are determined in real time with the conductivity electrodes. CSA software analyses the size and distribution of the bubbles.

The Foamspin can be sold as a stand alone or integrated with a Foamscan as an option.

Applications

  • Foamability: shampoo, cream, wine, beer, additives, formulation etc...

  • Scientific correlation with sensorial test

  • Improve formula and screening surfactant

  • Foam generates with shear

Options

  • Automatic Cleaning

  • Size of the bubbles (CSA)

  • Sparging

  • Sampler (Automatisation of the device) 

MiniJet™ - Foam generation by Jet

A jet of sample is directed downwards into the glass tube to generate foam. Inlet of the circulation pump is at the base of the glass tube, well below the foam. The pump drives the liquid sample to supply the jet. A video camera takes images of the foam.  The software analyses images to determine foam volume.

Glass tubes are composed of a double wall allowing to control the temperature of both the liquid jet and the foam, using a heating circulator. 

After the experiments, the sample can be removed automatically by the pump.

Applications

  • Foam generation by Jet

  • Fuel transportation

  • Home & personal care

  • Beers, sodas dispensers

  • Biomaterials and Paper products

  • Antifoams & Defoamers effectiveness

  • Foam prevention for paints and varnishes

  • Wasted water process

Options

  • Automatic Cleaning

  • Injection chamber (antifoam)

  • Solvant resistance

Foamscan™ HTMP - Foam generation by Gas Injection - 120 °C / 8 bar

Applications

  • Oil & Gas

  • Effect of the foam under pressure and temperature

  • Efficiency of the surfactant to create Foam in difficult conditions (EOR)

  • Liquide saturated with gas under pressure: Beer, soda, champagne

  • shaving foams and pressurized foams

  • Oil & gas

Options

  • Antifoam injection chamber

  • Solvent resistance

Foamscan™ DEPR Foam generation by Depressurization - 120 °C / 8  bar

The Foamscan DEPR is designed to measure the ability of a liquid to generate foam by sparging (or bubbling) a gas through a liquid or by depressurization. It also determines persistence of the generated foam by measuring variation in its volume, density, and drainage rate.

 

The Foamscan DEPR is equipped with a double jacketed removable glass tube. The instrument works at a temperature up to 120°C and an overpressure up to 8 bar.

A flowmeter operating up to 5000 mL/minute is connected to the bottom of the cell. The gas is injected into the tube through a glass frit. The gas flow is regulated depending on the pressure inside the tube. An overpressure up to 8 bar can be applied within the tube and a pressure regulator controls and maintains the pressure during the experiment.

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Applications

  • Non aqueous Foam (bitumen, petroleum, oil)

  • Effect on foam of dissolved gas in non aqueous or aqueous solution

  • Liquide saturated with gas under pressure: Beer, soda, champagne

  • shaving foams and pressurized foams

  • Foamability of solvant

Options

  • Foam generation possible by depressurization