3 ms·

Seems like US average is 0.855 pounds of CO2 emissions per kWh so this process looks like a significant win. Also grinding a ton of rocks doesn't use much energ

• bagels 3y ago
  Hard to follow all the units, but, just for grinding, using these numbers: grinding: ~14 kWh/tonne olivine absorption: 1.25 tonne of CO2 per tonne of olivine emissions: 0.855 lbs CO2 / kWh emissions: 5.4 kg CO2 per 1.25 tonne CO2 (1250 kg) absorbed
  • pfdietz 3y ago
    > emissions: 0.855 lbs CO2 / kWh Why do there have to be CO2 emissions?
    • oldbbsnickname 3y ago
      There don't. The problem is a lack of remote industrial equipment that are EVs powered by renewable electricity sources rather than diesel fuel.
      • defrost 3y ago
        That's not really that much of a problem to be honest. If this is to be an industrial mining scale operation that goes in with a 600 million tonne per annum target (similar scale to iron ore for steel mining operations) then the company building out the capital assets will setup EV's and solar on the grounds of both economy and PR. You can see this with Rio Tinto Iron, Fortescue Metals, etc.
    • bagels 3y ago
      You could solar power it, or whatnot. I was just trying to contextualize the numbers others had written.