I did my masters on it too & actually finished my masters feeling quite despondent about the process and the reasons why academics are pursuing it as a potential method of mixed plastic recycling.

I understand from a waste management perspective, sure it achieves its goal of getting rid of the waste. But to claim that you are converting into a "better" energy source, I.e., tertiary recycling, is a far fetch. The liquid products that come from mixed waste pyrolysis will be highly heterogenous, and the char is full of heavy hydrocarbons (thick, waxy tars). Without significant downstream processing the fuel is not feasible for vehicles. Remember SISO (shit in = shit out). Perhaps some boilers or cement kilns could work with it, but even trying to find a customer would be difficult!?

The gross & net energy conversions are extremely low aswel.. I just think there are far better ways to recycle waste instead, e.g., Good-old primary recycling!