Apparatus (2) for the pyrolysis of material, which apparatus (2) comprises a pyrolysis chamber (4), an inlet (6) at a first end (8) of the pyrolysis chamber (4), an outlet (10) at a second end (12) of the pyrolisis chamber (4), and feed means (14) for feeding the material through the pyrolysis chamber (4), the feed means (14) comprising a cranked member (16), at least one elongate member (18) which extends along the pyrolysis chamber (4) between the inlet (6) and the outlet (10) and which has a first end (20) adjacet the (6) inlet and a second end (22) adjacent the outlet (10), a feed formation connected to the first end (20) of the elongate member (18), and connector means (24) which connects the send end (22) of the elongate member (18) to the cranked member (16), and the feed means (14) being such that rotation of the cranked member (16) causes the elongate member (18) to move backwards and forwards and the feed formation to move the material from the inlet (6) towards the outlet (10).