Sparrow wrote in news:1184969770.149959.123120@
22g2000hsm.googlegroups.com:
M'kay. Lemme see now...
You want to make hydrocarbons from oxycarbons.
Where is the hydrogen going to come from? How will you crack the hydrogen from its chemical prison? How will you split the oxygen from the carbon in the first place? And how will you bind the relevant chemicals together so as to create the needed cetanes?
And can you do all this in any sort of economically plausible manner?