Which none make any sense since capturing and converting co2 consumes more energy than burning the coal generated.

The fact that none of this is economical makes this fairly difficult to do.

“Economical” evaluation right now, in the US, is before the true cost of carbon emissions are priced in. Once/If there’s a real carbon tax the economic viability on these may change.

I personally believe that in addition to pricing carbon governments are going to have to self fund massive sequestration projects as well to avoid catastrophic change.