Research test rigs were developed to facilitate the development of DEFT™. Each purpose made test rig incorporated its own unique reactor.
Circular electrode concept test (2013)
One of the first pilot plants, it entailed a concept that consisted of 6 electrode pairs operating within a shared ‘sump’. The electrodes were 30 mm in diameter and the technology involved circumferential flow.
Scaled circular electrode stack (2016)
The number of electrode pairs were increased to 49 circular electrodes each 30 mm in diameter and involving circumferential flow.
Filter press stack (2016)
The third pilot plant design principle was altered to a filter press stack design that incorporated 4 electrode pairs (20mmx400mm) featuring unidirectional flow of electrolyte through each pair.
Circular electrode filter press (2017)
Circular electrode filter press utilised a filter press design principle with singular cavity circumferential flow for multiple 30mm circular electrodes.
Bi-mono circular filter press (2018)
Pilot plant 5 incorporated a larger circular ring shaped electrode (110mm) making use of circumferential injection from both the inner and outer annulus.
Larger Bi-mono circular filter press (2018)
To facilitate a solution that can practically scale DEFTTM, a 230 mm ring shaped electrode was developed, and now represents an ideal compact solution for reactor capacities up to 20 kg H2 / day.