A unique capability of Proton’s PEM electrolysis cell design is the ability to generate hydrogen within the cell cathode at significantly elevated differential pressure over the oxygen anode, simultaneously generating pressurized hydrogen and near-ambient pressure oxygen within the same device. Proton’s differential pressure PEM cell attributes greatly simplify the overall system architecture – eliminating large gas volumes, liquid KOH gas scrubbers, H2-in-O2 gas recombination devices, high pressure oxygen hazards, and complex pressure equalization controls.
Proton’s H2 generators comply with applicable EU and North American mechanical and electrical standards; each model carries CE and North American quality marks. The HOGEN C-series is the first to be listed to the international water electrolyzer standard ISO 22734-1.
All NEL Proton PEM commercial hydrogen generators are designed and test-verified to be installed in ventilated, non-classified areas and to not cause the area to become classified. This is accomplished by virtue of an extremely low internal inventory of hydrogen that is well below any safety code minimum quantity requiring a control area. Hydrogen is first contained within process piping and then secondary containment of a ventilated and diluting generator enclosure.