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      CommentAuthorAngus
    • CommentTimeJan 22nd 2021
     
    Really fine filter at really high pressure? Just stretch those molecules apart.
  1.  
    er...lol
    • CommentAuthorAsterix
    • CommentTimeJan 22nd 2021
     
    Posted By: TrimIt is supposed to be easy to filter hydrogen from methane so why can't customers who want to just buy hydrogen?


    Not exactly easy, but consider the volumetric energy. 0.01 MJ/L at 1 atm for hydrogen vs. 0.03 MJ/L at 1 atm for methane.

    Mass-wise, hydrogen outclasses just about any other conventional fuel, but that's primarily because of the low mass of hydrogen.

    Okay, suppose we compress and refrigerate both hydrogen and methane to liquid form (and it's pretty energy-intensive to make liquid hydrogen). Per liter, H₂ ~= 10 MJ; liquid methane ~= 22.2 MJ.

    Volumetrically, methane is the winner, wrt energy density.
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      CommentAuthorAngus
    • CommentTimeJan 22nd 2021
     
    There is more hydrogen in a litre of methane than in a litre of hydrogen, is what it boils (soc) down to.
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    methane is the water of cryogenic life
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    Assuming cryogenic life exists (it doesn't).

    What's the water of plasma life at 100,000,000 deg. C?
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    electron soup
    • CommentAuthortinker
    • CommentTimeMar 20th 2021
     
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      CommentAuthorTrim
    • CommentTimeMar 20th 2021
     
    Thanks Tink, let's hope it's true.
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      CommentAuthorTrim
    • CommentTimeMar 20th 2021
     
    We still need some super hydride that can absorb a lot of hydrogen quickly and with a fast release of it as well.
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      CommentAuthoraber0der
    • CommentTimeMar 20th 2021
     
    Air?
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      CommentAuthoraber0der
    • CommentTimeMar 20th 2021
     
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      CommentAuthorTrim
    • CommentTimeMar 20th 2021
     
    Thanks flyman very fascinating.
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      CommentAuthoraber0der
    • CommentTimeMar 20th 2021
     
    It is what it is...
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      CommentAuthorTrim
    • CommentTimeApr 22nd 2021
     
    Energy Storage in Hydrogen : Does this beat batteries? - YouTube

    https://m.youtube.com/watch?v=f6_OVfrc_5A
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      CommentAuthorTrim
    • CommentTimeJun 20th 2021
     
    Unitized regenerative fuel cells for improved hydrogen production and power generation - Revolution-Green

    https://revolution-green.com/unitized-regenerative-fuel-cells-improved-hydrogen-production-power-generation/
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      CommentAuthorTrim
    • CommentTimeJul 4th 2021
     
    Researchers find the exact balance in which graphene coatings can promote hydrogen evolution reaction | Graphene-Info

    https://www.graphene-info.com/researchers-find-exact-balance-which-graphene-coatings-can-promote-hydrogen-evolution-reaction
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      CommentAuthorTrim
    • CommentTimeJul 14th 2021
     
    World's biggest green hydrogen hub announced for Western Australia.

    https://newatlas.com/energy/western-green-energy-hub/
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      CommentAuthorTrim
    • CommentTimeAug 8th 2021
     
    ‘Our plasma electrolysers will cut the cost of green hydrogen by a factor of three’ | Recharge


    https://www.rechargenews.com/energy-transition/-our-plasma-electrolysers-will-cut-the-cost-of-green-hydrogen-by-a-factor-of-three-/2-1-1032895
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      CommentAuthorAngus
    • CommentTimeAug 8th 2021
     
    It can't miss. It's got frequencies!