Buddy of mine works for a company that takes mixed plastic waste and converts it into fuel & feedstock for further plastic reuse. Their goal is to set up small plants throughout the country near plastic production sites, he works at what is effectively their prototype facility in NC. Best news article I found about them: https://www.farmvilleherald.com/2020/06/braven-to-give-plast...

And their about page, they use a form of pyrolysis: https://bravenenvironmental.com/braven-advantage/#advantage