Highlights of the interview:
- Purity at the dispensing point: Extremely pure hydrogen (quality 5.0, i.e. 99.999 % purity) is required for the operation of fuel cells. Dr. Dworog explains why filtration at filling stations and transfer stations is essential to remove particles and impurities from the supply chain.
- Protection of the fuel cell (stack): Contaminant gas concentrations in the intake air of more than 4 ppb (parts per billion) can irreversibly damage the fuel cell membrane. Find out how our multi-stage cathode air filters molecularly bind harmful gases by adsorption on activated carbons and ion exchange resins.
- The hydrogen combustion engine challenge: Dr. Dworog explains why hydrogen combustion engines require special ventilation solutions for the crankcase to avoid highly explosive mixtures.
- Dealing with "misuse" in the field: In practice, fuels are often stored in rusty canisters or poorly sealed tanks. Hengst develops solutions that work even if the fuel no longer meets the original standard due to poor storage conditions.
"There will be no alternative to green hydrogen in the long term"
Dr. Andreas Dworog
Group Director Advanced Development
