SteewpidZombie said:
Think of it this way: If you can burn 1 Litre of Fossil fuels to power a machine that produces 2 Litres of Synthetic Fuel (or even 1.2Litres), you now have a machine that can power itself with it's own product. So if they can refine the process to make more fuel then they expend, they'll have created a literal self-powering machine that can produce a cleaner alternative to fossil fuels.
This will NEVER happen. Conservation of energy states that you can't burn 1L of fuel to make 1 L of fuel. Not to mention trying to burn 1L of fuel to make more then that on the way out (unless you were making a worse fuel you could maybe turn 1L of octane into 1.5L ethane but that's again worthless). Never ever ever ever ever ever ever happen cause our universe is a harsh mistress.
Actual interesting uses for this is as others have mentioned storing a renewable energy source like
solar, hydro, nuclear etc in a more usable form. You can't really put nuclear reactors into car's like in fallout. You could for example put a solar farm in the sahara then hook that up to the plant and produce fuel which you could then use to run cars or power things in the night etc.
People somewhat conspiratorial ideals about the oil companies aside they probably aren't the biggest threat to this. Conventional battery technology is a bigger threat. If we can make more better batteries for car's then why bother turning it into fuel when you could just recharge a battery for your car. If that technology has some good advances it'll kill this off cause it just won't be all efficient and you won't make money off it.
The other big hurdle that comes to mind is how efficient they can make it. If you've taken some university chemistry you might know that there is a difference between the chemistry you do in a flask in your lab and what goes on in a chemical plant. Because of the huge scale up you need a completely different set of reactions to make it all move in bulk. If they can't find a way to scale this up and make it more efficient then batteries, bio fuels, solar paneled cars etc then this won't really go anywhere.
The thrid problem is they're completely dependent on advances in other renewable technologies. Right now they're turning (probably) coal into gas and its probably pretty inefficient. They're going to need a big solar farm, wind farm, fusion plant something a it might even have to be a dedicated plant just for their needs depending on your efficient things are.
While this is certainly nice and I'm all for them continuing this isn't much of a story. In gaming terms they've spent a few month's and put out a very short tech demo with a some interesting effects. How well it translates to a game in the future is really up in the air.