Yet another weird SF fan


I'm a mathematician, a libertarian, and a science-fiction fan. Common sense? What's that?

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Yet another weird SF fan
 

Tuesday, December 24, 2013

The Yield from Serpentinisation

You may have read of hydrogen produced by serpentisation as an energy source. I doubt if it will be that important; the yield is very low. The reaction is:

9Mg2SiO4 + 3Fe2SiO4 + 14H2O → 6Mg3Si2O5(OH)4 + 2Fe3O4 + 2H2
In other words, it will take 468 tons of rock to produce one ton of hydrogen.

I wonder if it's possible to get usable energy from pyrite? I think the yield will be higher.

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