If you make your pellets small enough, it is. The combustion of steel brushes is quite interesting to watch.
If you make your pellets too small, then is stops being an ordinary combustion and becomes an explosion.
https://en.m.wikipedia.org/wiki/Dust_explosion
Another interesting phenomenon is spontaneous combustion where exothermic reactions get hot enough to start the combustion process in a medium.
https://en.m.wikipedia.org/wiki/Spontaneous_combustion#:~:te....
I was a fire engineer in a past life, forgot the science but remember the cool phenomenons.
https://www.youtube.com/watch?v=A7j14otCdyY
If you make your pellets small enough, it is. The combustion of steel brushes is quite interesting to watch.
If you make your pellets too small, then is stops being an ordinary combustion and becomes an explosion.