Acal Energy Limited

University of Chester

Robert Longman

Brian Clarkson

David Ward

Michael Hines

A device for generating bubbles, comprising a porous material having at least one hydrophilic surface (), arranged such that a liquid () in which the bubbles () are intended to be formed may contact the hydrophilic surface () and at least one hydrophobic surface (), arranged such that a gas () used to generate the bubbles () may flow past the hydrophobic surface () before it flows past the hydrophilic surface (). The device may be used for creating fine bubbles in numerous applications, such as wastewater treatment, plant cultivation, aquafarming, aeration systems, bioreactors, fermeters, oil extraction or fuel cells.

Device and method for generating bubbles, use of the device and a fuel cell comprising the device

A redox fuel cell comprising an anode and a cathode separated by an ion selective polymer electrolyte membrane; means for supplying a fuel to the anode region of the cell; means for supplying an oxidant to the cathode region of the cell; means for providing an electrical circuit between respective anodes and cathodes of the cell; a catholyte solution comprising at least one catholyte component, the catholyte solution comprising a redox mediator couple; and a regeneration zone comprising a catholyte channel and a porous member having an active surface, the catholyte channel being arranged to direct a flow of catholyte adjacent to or towards the active surface, the means for supplying an oxidant to the cell being adapted to supply the oxidant to the porous member.

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Cheshire, United Kingdom

Robert Longman