The Lion Share of the Market in USA is mostly covered by companies like Liberty Recycling for example.
Yes, there are many breaking strides already and plants generally start around $6mm to $10mm and even as high as +$100mm to reverse manufacture tires, retain the valuable products from the process that can be used to manufacture again new products and/or make Electricity to operate and sell the overage. These plants can easily over produce in power generation.
I want to see a picture of this so called plant, or prototype.