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Instead of switching to hydrogen, one could make synthetic fuel out of seawater and use that and end up with net zero carbon emissions. The US Navy has just thi

Instead of switching to hydrogen, one could make synthetic fuel out of seawater and use that and end up with net zero carbon emissions. The US Navy has just this thing in mind [1], [2]. They think they can end up with a cost of $2/gallon. [1] https://usea.org/sites/default/files/event-/Willauer_7_24_2019.pdf https://usea.org/sites/default/files/event-/Willauer_7_24_20... [2] https://www.nrl.navy.mil/news/releases/nrl-seawater-carbon-capture-process-receives-us-patent https://www.nrl.navy.mil/news/releases/nrl-seawater-carbon-c... [2]

Hypx 6y ago
Your process still requires an electrolysis step. It's basically claiming that they can extract CO2 alongside the hydrogen, allowing for either the Sabatier or Fischer-Tropsch process to make hydrocarbons in a relatively cost effective way. For it to work, it will require the ability to make hydrogen at extremely low cost. So in practice, it is likely to just be part of the hydrogen economy.