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Re:Electroreduction of nitrogen with almost 100% current-to-... by Terr_ on Saturday October 28, 2023 @09:00PM (#38054926)
A sibling comment mentions scrubbing NOx emissions as a significant issue, and it strikes me that the shipping/cruise industry is already a major polluter in that area. (Unlike cars, which must have catalytic converters because of local landlubber laws.)
Re:Electroreduction of nitrogen with almost 100% current-to-... by toomuchtodo on Saturday October 28, 2023 @09:17PM (#38055023)
High efficiency scrubbing appears to be feasible.

https://pubs.acs.org/doi/10.1021/acs.energyfuels.3c01419

Re:Electroreduction of nitrogen with almost 100% current-to-... by Terr_ on Sunday October 29, 2023 @03:41PM (#38061919)
[delayed]
Re:Electroreduction of nitrogen with almost 100% current-to-... by ForgedEngine on Sunday October 29, 2023 @09:03PM (#38064527)
NOxs are practically zero with HCCI at a stoichiometric ratio.