2 ms·
Honestly, the low tech nature of grinding up rocks, baking them, and setting them out in a pile makes this seem pretty easy to scale, given any money
by ImPostingOnHN 3y ago
Honestly, the low tech nature of grinding up rocks, baking them, and setting them out in a pile makes this seem pretty easy to scale, given any money
- eppp 3y agoIsn't this just portland cement at that point?
- walnutclosefarm 3y agoI'm really thinking of the energy scaling. Suppose you want to use such a technology to offset burning oil for some purpose. Even for highly efficient processes, you're going to get generate a ton of CO2 for a MWh of usable energy. You're then going to use 2 MWh of electrical energy to recapture the CO2. So, you've tripled the energy we need to produce for that process. That's really raising the bar on carbon neutral energy production.
- ImPostingOnHN 3y agoenergy production is orthogonal to CO2 production, neither requires the other to happen so, imagine you want to absorb a ton of CO2 from the air to prevent the planet from further spiraling into uninhabitability: you could electrically bake the rock with renewable energy, then use it to absorb CO2