oberham schrieb am 20.06.2023 10:01:
..... so banal es klingt, für die Herstellung von Wasserstoff braucht es nicht nur extrem viel Energie für die Elektrolyse, es braucht witzigerweise auch Wasser, und zwar sehr sauberes Wasser, kein Salzwasser, Süßwasser.
Das wird noch erprobt, scheint aber zu funktionieren:
»Chinese state-owned wind turbine maker Dongfang Electric has successfully produced green hydrogen directly from seawater during ten days of testing on a floating offshore platform.[…]
[Desalination] by reverse osmosis is relatively inexpensive, costing about 0.035kWh of electricity per kilogram of hydrogen — a fraction of the 50-65kWh/kgH2 needed by electrolysers[…].
Nevertheless, the Chinese technology removes the need to build onshore desalination plants, and means that hydrogen could be produced directly offshore using power from nearby wind turbines, and then pumped to shore via pipeline […].«
https://www.hydrogeninsight.com/innovation/chinese-scientists-produce-green-hydrogen-directly-from-seawater-at-floating-offshore-pilot-project/2-1-1461905
gruss. luky