Yes, the claim is that with the catalyst (I assume different "blends" of it?) the hydrocarbon chain length can be cracked at a desired length, with a success rate of roughly 75%. Diesel is the "optimal" fuel for output (highest energy to mass ratio), but you can get out 75% natural-gas too if desired.
However I believe the catalyst, processors and permits are all (for now) based on the diesel output scenario.