Safe and efficient:

Cathode filter, ion exchanger, and water separator

Fuel cell systems are a key technology for generating energy sustainably, and thus also for climate-friendly mobility with no harmful emissions. Using hydrogen as a fuel in a noiseless electrochemical process leaves only water and atmospheric oxygen as emissions. This process does, however, bring some challenges. To enable the safe and efficiency-optimized operation of fuel cell stacks, Hengst offers high-performance filtration solutions. Developed as modular or customized modules, they effectively help expand CO₂-neutral mobility. In this way, as an experienced specialist in filtration and fluid management, we live up to our corporate vision of “purifying our planet”.

In fuel cell stacks, for example, the solubility of ionic components in the coolant circuit can pose a problem, as this may result in an increase in conductivity and electrical short-circuit effects, as well as power losses of the fuel cell. The Hengst Blue.iox ion exchanger provides a remedy here, guaranteeing safe operation of the coolant with minimal electrical conductivity.

A cathode filter specially developed for the application shields the core components of the fuel cell from harmful gases and particles. By separating out sulfur gases and ammonia particularly effectively, the filter prevents damage to the fuel cell catalyst and membrane.

To avoid deposits of liquid water and thus ensure that the fuel cell operates effectively over a long period of time, managing water correctly is crucial. The solution from Hengst: a novel separator module for anode gas recirculation. Using an innovative valve technology, this module combines the functions of water-drop separation and gas discharge.