Is there catalyst in your tire pyrolysis machine?

The theory of tire pyrolysis machine is through pyrolysis, let solid tire become oil gas under high temperature,then by recycling water, cooling down oil gas to liquid oil. So during tire pyrolysis machine  processing, no need to use catalyst in tire pyrolysis machine. However, the oil distillation machine need catalyst, since we want to change tire or plastic oil into diesel, so we must use catalyst to reflect with oil.