Coal + hydrogen question

From: brianb (bri1600bv_at_hotmail.com)
Date: 07/20/04

  • Next message: David Harper: "Re: Na + H2O2 (50%) -> H2?" 
    Date: 19 Jul 2004 20:17:27 -0700

    Would it be possible to instead of converting coal to oil, convert
    coal + hydrogen to oil? Would this allow the process to use more of
    the carbon in the coal?

    Coal is only 6% hydrogen or thereabouts, so wouldn't adding hydrogen
    in theory allow you to end up with a 16-17% hydrocarbon?

    How much energy would this take to add the heat and whatnot?

    I think about 100kgs of hydrogen and 1000kgs of coal (which is 6%
    hydrogen) would do it.

    Would it be cheaper to use sequestered carbon dioxide? Or would
    splitting the carbon from the oxygen require too much work?

    Does anyone know? Is this even possible? I would think so, it would
    also allow liquid fuels to be made from renewable energy (wind for
    example) rather than just hydrogen. Right now wind is limited on the
    grid due to intermittency.

  • Next message: David Harper: "Re: Na + H2O2 (50%) -> H2?"

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