Abstract: A pyrolysis system includes a generally cylindrical reactor chamber having two opposite ends and a longitudinal axis. The chamber has an inlet for receiving biomass, the inlet being adapted to prevent air from entering the chamber and being located at a first opposite end; a gas outlet for recuperating biogas produced in the reactor chamber, the gas outlet being adapted to prevent air from entering the chamber and being located at a second opposite end; and a solid outlet for recuperating charcoal produced in the reactor chamber, the solid outlet being adapted to prevent air from entering the chamber and being located at the second opposite end. The biomass is then subjected to indirect heating supplied by a heated rotor that decomposes the biomass in the absence of air or oxygen into a biogas and charcoal. A controller for controlling a rate of feed of biomass, extracted carbon residue and a temperature inside the reactor chamber is also provided.