We've earlier reported that methanol is a pretty good liquid fuel in it's own right, and that you can extract it from coal, waste wood, sewer sludge and some garbage. Even previously-loved Intel's could be tossed into the feed.
And, we've documented how methanol can itself be converted into perfectly useable gasoline, as with Exxon-Mobil's patented "MTG", Methanol-To-Gasoline, process.
Now, in this article, we discover that CO2 - generated in both the processes of burning coal and/or converting it into liquid fuel, and then burning that - can be captured, from the atmosphere (and, one expects, from various exhaust flues), and directly employed to make more liquid fuel.
As we've been saying, the "wastes" from coal utilization processes should be seen as raw material opportunities.