United States Patent: 4686313
We know that we've beaten the ExxonMobil "MTG"(r), methanol-to-gasoline technology, nearly to death.
In that process, as we're certain you will by now recall, Coal is first converted into Methanol; and, the Methanol is then converted into Gasoline.
Like some other Coal conversion technologies, arising from other sources, we have documented for you, zeolite minerals, - - synthetic versions of which, interestingly, and again as we've earlier documented, can be harvested in abundance from Coal-fired power plant fly ash - - most especially one designated as "ZSM-5", are specified as catalysts which facilitate, in ExxonMobil's technology, the condensation of Methanol from synthesis gas made from Coal, and, as we understand it, the subsequent transformation of that Methanol into Gasoline.
We further remind you that Exxon's process is not the only one which enables the production of Methanol from Coal. We have many time documented the fact that Eastman Chemical Company is, and has for some years been doing, just that at their plant in Kingsport, Tennessee. And, there are other, international, examples of the process in use, as well.