
De.OXO Hydrogen®

Hydrogen quality for fuel cell
A common way of producing hydrogen is through electrolysis. A hydrogen stream derived from an electrolyzer hydrogen production system contains high levels of oxygen and water, which compromises the quality. Our De.OXO system removes the oxygen and water from the hydrogen to levels of <5 ppm of oth the water and oxygen content to meet the high-purity requirements for fuel cell hydrogen.
Features
- Removal of oxygen and water from hydrogen to <5 ppm.
- Purifies hydrogen stream from elektrolyzer.
- Hassle-free hydrogen production.
- Smart regeneration technology without blower involvement.
- >98% recovery of hydrogen.
- Easy-to-integrate downstream of any elektrolyzer.
- Low maintenance.
- Higher value hydrogen gas.
Essential tech for ultra-pure H2
The De.OXO Hydrogen® is easy to integrate with any electrolyzer. Different from our De.OXO Biogas where the membranes take care of the drying and water removal, this system includes an integrated TSA step for water removal.
In the reactor, the oxygen is removed and the hydrogen proceeds to the TSA vessels. But first, the hydrogen is cooled to remove moisture before entering the reactor. Here, the oxygen reacts with hydrogen, reducing O₂ levels below 5 ppmv. The gas is cooled again to remove more water before entering a TSA vessel and removing remaining moisture (<5 ppmv). The TSA system runs continuously: with one vessel adsorbing while the other regenerates using feed gas (without blower). Purity is continuously monitored.

Advantages
Many applications demand ultra-pure hydrogen with oxygen and water or moisture levels below 5 ppm. De.OXO technology delivers ultra-pure hydrogen to comply with fuel cell grade, industrial, and grid standards. High-purity hydrogen fuel cells power vehicles for example. High purity hydrogen eliminates explosion risks, integrates easily with electrolyzers, cuts costs, and increases operational efficiency. With continuous purity monitoring, the system guarantees safe, reliable, and hassle-free hydrogen production.
