[packagingguy]

The modern way is to heat and gasify, scrub the gas and use the gas as synthesis gas or fuel.

We studied it some in packaging but chemical engineers could tell you much more than I know.

I’ve never studied chem e.

[imardmd1]

That may be a non-contaminating way that works , but is it used predominantly across our culture, or even prevalently; but is it the preferred way by local state and county code?

This article shows otherwise.