[stdplaceholder]

There is no thermodynamically possible way to generate power from burning coal while also removing the primary product of the reaction from the effluent. Clean coal is, necessarily, 100% bullshit.

[fromthestart]

That's not true at all. You can, for example, sequester it by injecting it into the earth.

[mrguyorama]

By default you would then end up with less energy than you started with

[adrianN]

I think the idea is not to turn the CO2 back into carbon and oxygen, but to store it somewhere other than the atmosphere. That is not thermodynamically impossible.

[avs733]

>Clean coal is, necessarily, 100% bullshit

Necessarily = chemically and thermodynamically