The new method applies electricity instead of heat. This does 2 things:

1. Controls the rate of hydrochloric acid production, making the process safer.
2. Uses process by-products in the recycling of other plastics.

(I think, I might have missed other benefits). Basically, electro-processing PVC makes it safer and cheaper to recycle it and other plastics.

Still sounds like it makes a nasty soup of toxins though.