[ExI] Cost of synfuel was Air-powered cars

[spike]

> -----Original Message-----
> From: extropy-chat-bounces at lists.extropy.org 
> [mailto:extropy-chat-bounces at lists.extropy.org] On Behalf Of hkhenson
> Sent: Friday, June 06, 2008 1:37 PM
> To: ExI chat list
> Subject: [ExI] Cost of synfuel was Air-powered cars
> 
... 
> ...$0.01/kWh.  Figuring gasoline as pentane,
> 
> 5CO2 + 16H2 --> C5H12 + 10H2O
> 5x44   + 16x2      5x12+12  10x(2+16)
> 220         32         72          180
> 252                      252
> 
> ...On the other hand, I 
> don't know how many of the list readers actually know 
> chemistry.  Those who do, please check my numbers. Keith 

Keith, why pentane for these calcs instead of octane?  Pentane is liquid at
room temp but just barely.  I agree the reactions you call out above do
balance.

When I have some time to look at it, I want to consider the total energy
balance in:

 8CO2 + 25H2 --> C8H18 + 16H2O

since octane is something we already have the infrastructure to handle.  Not
now tho, I'm preparing to do some recreational: 

2C8H18 + 25O2 + $$ --> 16CO2 +  18H2O + {8^]

spike