>Oil burners will burn anything that remains
>fluid and can burn.

Coal dust? Plastic powder? These are fluids.

I guess coal dust would work if it coule be kept suspended. Plastics
wouldn't, because the complex molecules wouldn't burn completely and
the engine would soon be a gooey mess.
--
Andrew Grebneff
Dunedin
New Zealand
Fossil preparator
<andrew.grebneff@stonebow.otago.ac.nz>
Seashell, Macintosh, VW/Toyota van nut