Re: Methanol production from atmospheric CO2


"Terry" <prfesser@xxxxxxxxxxx> ha scritto nel messaggio
news:6dn1059nnp7r7oe16trgorq8ldlvr41hc1@xxxxxxxxxx
On Tue, 05 May 2009 18:11:55 GMT, "Romeo Gigli" <rgigli @ (no-spam)
libero.it> wrote:

Is there a chance to produce liquid fuels (for example, methanol or
dymethil
ether) useful for private transportation from natural (and potentially
very
dangerous...) CO2, using low temperature waste heat (and if necessary
electricity/hydrogen) from "clean" energy sources (geothermal, solar, wind
or even nuclear) ? I'm very curious, which are in particular the
temperatures and energies needed?

Hello Romeo,

The amount of energy needed to produce methanol (and oxygen gas) from
CO2 and water is more than that provided when the methanol is burned.

Oh yes, I had no doubt about this! I thought about using electricity and low
temp waste heat of some "clean" (not fossil) energy sources, not certainly
the production of methanol is free!



.

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