High quality electrochemical cells and systems

Electro Prod Cell

Electrode area 0.01-0.2 m²

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General Description

The Electro Prod Cell has been designed on the lines of the traditional plate-and-frame filter press having electrodes stacked together with ion exchange membranes or porous separators in between, if needed. Electrodes and membranes are attached to specially designed injection moulded frames made of polymer materials (typically PP, PVDF). Modules of desired size are easily obtained by adding on frames with electrodes and membranes. The projected electrode area of such a module can be 0.4 m² to 16 m². See technical data.

Applications

With all optional features available, the Electro Prod Cell has proven to be well suited for synthesis of a wide range of organic and inorganic chemicals within e.g. the pharmaceutical, fine chemical, petrochemical and food industry.

Other applications are hypochlorite type processes and processes within the environmental field such as recovery of acids and bases from different waste salt solutions.

Important Features

Turbulent promotors for good mass transfer
Uniform flow distribution
O-ring seals and injection moulded cell parts to ensure a leak-proof construction
Internal flow distributing channels
Modular construction - easy scale up
Monopolar design with or without voltage steps (bipolar on request)
Flexible choice of materials
Numerous cell configurations
Adaptable to many unconventional electrode materials achieving “flow-by”, “flow-across” or “flow-through” pattern.
Simple, compact and robust
Variation of flow rates over a wide range
Divided or undivided operation
Interchangeable electrodes in many different materials
Narrow electrode gap — low power consumption

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Optional Cell Configurations

The engineering behind the Electro Prod Cell allows a number of different alternatives to be achieved. By repeating or combining the cell pitch, a whole module of the specific characteristic is built up.

Porous electrodes made of e.g. particles, felt or “spongy” materials can be fitted to achieve high specific electrode area (see also figures with Alt. 5-7).

Typical configurations are monopolar design in 1, 2, 3 and even 4 compartment arrangements. See figures of 2- and 3-compartment configurations (and figures with Alt. 1, 3 and 4). Other configurations on request.

Monopolar units can be divided in ”voltage steps” in order to limit size and cost of power supply.

Exploded view of 2-compartment monopolar module.

Exploded view of 3-compartment monopolar module.

3-compartment cell module assembled on turnable skid.

Alternative 1: Conventional two-electrode membrane cell with two electrolytes, “flow-by”
Alternative 2: Combining above with internal cooling/heating or gas diffusion electrodes. Typically complex and relative expensive to achieve this alternative. Cooling/heating typically made outside the Cell module.

Alternative 3: Combining Alternative 1 with provision for electrodialysis
Alternative 4: 4-compartment cell with combination of electrolysis and electrodialysis

Alternative 6-8

Alternative 5-7: Porous three-dimensional structures
Alternative 5-6: Two electrode membrane cell with “flow across” pattern
Alternative 7: Two electrode membrane cell with “flow through” pattern