At last
Copied: Plastics are generally recycled back into oil in massive facilities, but a Japanese inventor has built a tabletop machine that can accomplish the same task safely and cleanly. It's called the Blest Machine and was put together by Akinori Ito, after he began to see the places he played in as a child disappearing.21 Oct 2010
https://www.wired.co.uk/article/blest-machine
For around £6000.00 you can have your own recycle machine.
In Swindon they started to produce plastic to oil machines.
https://www.letsrecycle.com/news/latest-news/swindon-mp-opens-plastic-to-oil-machine-factory/
I have not come across any drawbacks and did write to my MP Con. years ago but never received a reply.