It's based on a device known as an "air curtain burner" that burns large quantities of biomass with very little smoke. They have modified it with a bunch of expensive add-ons that result in the capture of about 5% of the material as biochar.
Our system utilizes all of the heat and yields 30% biochar.
You never change things by fighting the existing reality. To change something, build a new model that makes the old model obsolete. R. Buckminster Fuller