Not so Walker, I'm afraid. Much as I would like to to be the case these various systems require high temperatures to work at all. There is a modified FT reactor designed to turn scrap car tyres into Diesel just outside Leipzig - which I visited around 2010. It makes 2 tons of high-sulphur oil a day (so fairly big) but requires 6x160kW microwave heaters- by coincidence almost a Megawatt. The reaction temperature in this machine is kept down by using special modified Zeolite catalysts, but even so the optimum temperature for conversion is around 625C and most of the back end of the system involves cooling stuff down rather than heating it up. The shredded tyres are sprayed with water and enter the process wet btw, so no steam is required
Rossi used a similar device at his Petroldragon plant, so he knows plenty about it. The big problem is that even though these machines exist and are manufactured by JM, the energy balance and operating temperatures required are no help to him at all. They still produce vast amounts of waste heat - and take up a fair amount of space.
I have zero wish to see the Rossi dream end in tears, but this idea is tbh a real delusion,