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New York Startup Builds Fridge-Sized Machine That Can Turn Air Into Gasoline (www.jalopnik.com)
submitted 9 months ago by to c/technology@lemmy.world
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[–] 25 points 9 months ago (4 children)

Any carbon it takes in will be released exactly back to where it was.

Except it won't be. Combustion is not a perfect CxHy O2 > CO2 + H2O reaction. Theres a bunch of other side reactions happening, NOx, unburned hydrocarbons, particulate matter, carbon monoxide. There are lots of challenges to continuing to utilize hydrocarbon fuels, especially in mobile/small scale applications where you can't clean the exhaust stream.

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  • [–] 13 points 9 months ago* (2 children)

    Except it won’t be.

    None of the things you've described increase the carbon output.

    What chemical reaction gets more carbon out than it puts in?
    (Where do these new carbon atoms come from, fusion?)

    If anything, those other products include non-gaseous compounds which sequester the carbon from the fuel into a solid resulting in a net-negative amount of carbon being released into the atmosphere.

    Those side-products are not good, I'm not saying otherwise, but they are not additional carbon.

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  • [–] 4 points 9 months ago* (last edited 9 months ago) (1 child)

    It’s not worse. It’s carbon neutral

    So replacing their gas with carbon neutral gas will improve the situation by 100%.

    Referring to things as carbon neutral is typically shorthand for net neutral CO₂e (or net-zero) CO₂e.

    You're pedantically right that the machine is not creating or destroying carbon atoms, but the things it does create have massive "carbon dioxide equivalence". Or, phrased differently: the emissions of this equipment are equivalent to emitting significant amounts of carbon dioxide.

    They also reek havoc on people's lungs.

    This is worse than air, but better than doing nothing I suppose. The situation is not "improved by 100%". It's marginally better, but definitely not 100%.

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  • [–] 1 point 9 months ago

    The particulate matter won’t occur in a hydrocarbon that is generated, that comes from imperfect processing of crude. If you pull the carbon directly out of the air there are no particulates.

    But yes it will still be carbon neutral. No additional carbon will be released back into the atmosphere.

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