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A comment on Launch HN: Prometheus (YC W19) – Remove CO2 from Air and Turn It into Gasoline. Parent comment

Re:Launch HN: Prometheus (YC W19) – Remove CO2 from Air and ... by Zenbit_UX on Tuesday May 07, 2019 @09:01AM (#19848944)
Is your device small enough that it could be placed to filter the exhaust emissions from a fuel burning car and reinsert the newly created gasoline into its fuel tank?
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Re:Launch HN: Prometheus (YC W19) – Remove CO2 from Air and ... by shawabawa3 on Tuesday May 07, 2019 @11:22AM (#19850331)
powered by what? It would only make sense if there was a carbon free cheap power source you could use to charge it - if you just take it from the car battery you're wasting fuel as it's only ~50% efficient
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