We submit the enclosed link to the technical paper "Studies in Coal/Waste Co-processing at Hydrocarbon Research" only as further evidence of the development work, successful development work, that has been done in utilizing plastic and rubber wastes as hydrogen donors and co-reactants in coal liquefaction processes.
Our limited technical capacities do not allow us to make excerpts for you from this file format.
The company involved, HRI, was, as we've reported, the technical specialist in Kentucky's "H-Coal" coal liquefaction pilot plant operation. They are now a wholly-owned division, or subsidiary, of Utah's alternative fuel specialist, Headwaters.
In any case, the enclosed report details very successful batch operations wherein coal was converted, along with hydrogen-rich waste plastics, into petroleum-type liquids suitable for refining into commercial petroleum products.
Perhaps the one point that should be emphasized, yet again, amid all the technical clutter in this paper, is:
Coal can be successfully liquefied into petroleum substitutes, and that liquefaction can be achieved through a number of processes that are able to utilize both waste and renewable materials as beneficial and productive co-reactants.