Huh? They're talking about capturing CO2 from power plant "flue" gases. So we burn fossil fuels, capture the CO2 and we're now green. When we burn the captured gases, convert to fuel we've simply re-constituted the oil effluent to be reburned later on. That's NOT green. That's simply delayed, not avoided pollution. Then they state "after the oil is all burned" what will we do? Well this process appears to require flue gases to work so it's over when the oil burning is over. Duh? Lastly, this process would be "the best" if it grabbed free CO2 from the air now, not flue gases. That way it's removing oil based CO2 as well as natural CO2 so when the oil is gone it doesn't matter, we have the atmospheric CO2 to use. If this was developed to be very efficient we could and should stop oil burning all together as soon as we can. The possibility is there with this process.

That's NOT green.

Consider that the powerplant may be running on the same synthetic fuel you just created.

It's simply more efficient to capture the CO2 at the point of origin rather than filter it from the air.