Electrochemical hydrogen separation technology (EHS) offers a significantly more economical method for producing hydrogen, the Munich company Siqens announced. The EHS enables the local production of fuel cell quality hydrogen. For example, hydrogen is obtained by separating it from natural gas after transport via the existing gas infrastructure. But other locally available renewable resources such as biogas, methanol or methane can also be used. They all contain hydrogen atoms chemically bonded to carbon, oxygen and other atoms. In principle, it is even possible to obtain hydrogen in this way from waste streams, such as biomass and non-biogenic municipal and industrial waste. The EHS process still allows hydrogen to be extracted from natural reservoirs. Depending on the volume of hydrogen concentration in the feed gas, the energy requirement to produce 1 kilogram of hydrogen with EHS is only 3-5 kWh, i.e. around a tenth of the energy content of hydrogen. The EHS process reduces the energy requirement by around 90% per kilogram of hydrogen compared to electrolysis.
“Electrolysis requires a lot of electricity and is also expensive and complex,” comments Siqens CEO Dr. Thomas Klaue the cost comparison. “This once again underlines the need to use alternative technologies such as the EHS.” Together with a reformer connected upstream, the EHS can separate and separate the initially molecularly bound hydrogen from feed gases such as biomethane”.
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Press release https://is.gd/NswPnY