4 ms·
Interesting, let me try: A tonne of CO2 is 12/44 C, or 273kg. So let's call it $1/kg because 250 ~= 273. A kg of CH4 is 12/16 C and 4/16 H, so a kg is $0.75
by bryanlarsen 3y ago
Interesting, let me try:
A tonne of CO2 is 12/44 C, or 273kg. So let's call it $1/kg because 250 ~= 273.
A kg of CH4 is 12/16 C and 4/16 H, so a kg is $0.75 for C + $2.50/4 for H = ~$1.40/kg.
https://www.epa.gov/cmop/updated-coal-mine-methane-units-converter https://www.epa.gov/cmop/updated-coal-mine-methane-units-con... says 1000 cubic feet of methane is 19.26 kg. Call it 20 because we're doing it in our head.
$1.40 * 20 = $28 / kcf.
- lucisferre 3y agoArrrg, this is what I get for answering this while distracted, I did not multiply by 8. So it was 400cf or 0.4kcf for $10, so yeah you are right. That's actually not terribly far off their white paper actually. It's not as good as current market prices $12/kcf but it is not so far off, particularly if you consider potential subsidies for capturing carbon. Thanks for that.
- bryanlarsen 3y agoOn https://www.youtube.com/watch?v=NngCHTImH1g https://www.youtube.com/watch?v=NngCHTImH1g he says the goal is $100/tonne carbon capture and $1/kg H2, which puts those inputs well under the $10/kcf leaving some margin for the cost of the sabatier. Both processes are directly proportional to the cost of electricity and heat so assuming the thesis of decreasing solar costs holds true, it's a question of when not if.
- lucisferre 3y agoYeah that would be pretty amazing.