METHOD FOR RECOVERY OF CARBON AND MIXTURES OF HYDROCARBONS FROM POLYMERS, ESPECIALLY IN THE FORM OF DISCARDED TIRES, BY PYROLYSIS IN A PYROLYSIS REACTOR

摘要

A method for the recovery of carbon and combinations of hydrocarbons from discarded tires or similar polymeric material by pyrolysis treatment in a reactor whereby the material is heated to pyrolysis temperature in the reactor and the pyrolysis gas obtained is withdrawn from the reactor and brought to condense in a condenser connected to the reactor, characterized by the use of a reactor having an outwardly sealable space in which material is loaded batchwise, an inlet and an outlet forming part of a recirculation circuit wherein a preheated gas is led through the reactor and the condenser passing through and in direct contact with the polymeric material placed in said reactor, wherein at least a part of the pyrolysis gas obtained and withdrawn from the reactor which does not condense in the condenser is heated to a predetermined temperature and by recirculation in said recirculation circuit, is led through the reactor for heating of the polymeric material in the reactor.