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Thread: hydrogen fuel

  1. #1 hydrogen fuel 
    Moderator Moderator AlexP's Avatar
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    I haven't the slightest idea where this should go, so i'm putting it here.

    If hydrogen fuel is the 'new thing,' and its only by-product is water, and there is starting to be concern over the availability of fresh water, would it be feasible to produce fresh water by means of burning hydrogen, and then sprinkle the usual small amounts of salts and whatnot into it, and have it be useable for the usual purposes of fresh water?


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    I cannot see that would be efficient, I know that the space shuttle uses the waste products of it's fuel cells to provide drinking water (which is then delivered to the ISS), but it's a pretty expensive business.


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    Forum Isotope Zelos's Avatar
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    it isnt good getting water that way since you need water to make the hydrogen in the first place, there isnt hydrogen H<sub>2</sub> free in the atmosphere
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    Moderator Moderator AlexP's Avatar
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    Quote Originally Posted by Zelos
    it isnt good getting water that way since you need water to make the hydrogen in the first place, there isnt hydrogen H<sub>2</sub> free in the atmosphere
    good point. Could we get H<sub>2</sub> from hydrocarbons? (but of course, we wouldn't want to do that if we'd end up producing more CO<sub>2</sub>)
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    Forum Ph.D. Nevyn's Avatar
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    Quote Originally Posted by Chemboy
    good point. Could we get H<sub>2</sub> from hydrocarbons? (but of course, we wouldn't want to do that if we'd end up producing more CO<sub>2</sub>)
    We already use hydrocarbons, Petroleum is a hydrocarbon and is the result of cracking a larger one (i forget which)
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  7. #6  
    Moderator Moderator AlexP's Avatar
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    Quote Originally Posted by Nevyn
    Quote Originally Posted by Chemboy
    good point. Could we get H<sub>2</sub> from hydrocarbons? (but of course, we wouldn't want to do that if we'd end up producing more CO<sub>2</sub>)
    We already use hydrocarbons, Petroleum is a hydrocarbon and is the result of cracking a larger one (i forget which)
    yes, i know. I'm talking about just obtaining H<sub>2</sub> from hydrocarbons. I have no idea how you'd go about doing this, but if you added double and triple bonds to hydrocarbons, you'd knock off hydrogens, which i'd imagine would make H<sub>2</sub>.
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