Abstract: Useful byproducts are recovered through the pyrolytic processing of biomass material (2) such as vegetation, paper, or worn tires. The process is conducted in a sealed enclosure (5) under vacuum or other controlled atmosphere. The biomass material is ablated and burned by crunching between counter-rotating rollers (3, 4) whose inner walls have been exposed to a highly heated fluid. The biomass material is preheated by injecting into the feeding duct (6) super-heated dry steam (37). A condenser (29, 30) within the enclosure reduces resulting vapors into oils that can be drained from the enclosure pan (32). Solid combustion residue is abstracted from the enclosure by an Archimedes screw (35).

Abstract: Useful byproducts are recovered through the pyrolytic processing of biomass material such as vegetation, paper, or worn tires. The process is conducted in a sealed enclosure under vacuum or other controlled atmosphere. The biomass material is ablated and burned by crunching between counter-rotating rollers whose inner walls have been exposed to a highly heated fluid. The biomass material is preheated by injecting into the feeding duct super-heated: dry steam. A condenser within the enclosure reduces resulting vapors into oils that can be drained from the enclosure pan. Solid combustion residue is abstracted from the enclosure by an Archimedes screw.