Practically free fuels - half-green variants

 Practically free fuels - half-green variants. 

Author: David Judbarovski, systems engineering, principle inventor, retired, my  CV see in Linkedin.com.  

Abstract.

 They allow to reach the oil (CH2) produced domestically and practically free. 0.5 mol CO2 exhaust, consuming 1.5 mol C per a mol. CH2. It is allowed by extremely cheap solar and/or wind energy, earlier developed by me during many years. Such oil allows to integrate huge amount  of solar and wind electricity to national greed, being now sore and unsolvable problem.

C + H2O = CO + H2 ( Fischer-Tropsch process ) - 176 KJ.  

Here CO being valuable product, can be sold by USD 50 / ton or much more. 

H2 =  ((12 * USD 120 / ton - 28 * 50) + 176 * 4 /3.6 ) / 2 = USD 100/ ton H2. 

C + CO2 (from the air) = 2 CO, (Boudouard reversible reaction, can  be near 100 % energy effective at mild conditions ), so here

0.5 C + 0.5 CO2 = CO - 86 KJ, so here 

CO = ( 12 *120  / 2  + 1144 kwh * 4 * 44/ 2 ) / 28 + 86 * 4 / 3.6 / 28 = USD 29 / ton CO. 

CO + 2 H2 =  CH2 + H2O + 226 KJ, can be converted in electricity and sold. 

So CH2 = ( 28 * 29  + 4 * 100 - ( 226,000 /3.6) * 0.3 efficiency heat in electricity * USD 0.03/kwh local tariffs) / 14 = USD 27 / ton CH2, so a barrel of oil is practically free.

References. 

Roadmap manifesto from present energy fiasco via  realistic half-greens to clean energy. 

And so on, and so on.