Pyrolysis and depolymerization of tire material
AssigneeMicrowave Solutions GmbH
InventorsAnnelie Stapela, Mathys Johannes Rossouw
Life of this patent
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Abstract
The invention relates to a pyrolysis method and reactor for recovering at least one component from a tire material using thermal decomposition. The tire material is delivered to a pyrolytic chamber (1), exposed to a controlled atmosphere and heated to a decomposition temperature of the at least one component in the pyrolytic chamber (1) by microwave radiation. A variable power microwave radiation at frequencies between 300 MHz and 2500 MHZ is applied to sequentially vary a temperature in the pyrolytic chamber (1) over a temperature range including the decomposition temperature of the at least one component.
Claims16
Pyrolysis method for recovering differing material components of tire material using thermal decomposition, wherein the tire material is delivered to a pyrolytic chamber (1), and exposed to a controlled atmosphere and heated to a decomposition temperature of the differing material components in the pyrolytic chamber (1) by microwave radiation,
- characterized in that
- a variable power microwave radiation at frequencies between 300 MHz and 2500 MHz is applied to sequentially vary a temperature in the pyrolytic chamber (1) in a temperature range including predefined temperatures of the differing material components to sequentially increase the decomposition temperature in the pyrolytic chamber, resulting in a sequential decomposition of differing material components and separately collecting the differing recovered material components through several successive exit ports provided at points of increasing product temperature along a length of the pyrolytic chamber.
Pyrolysis reactor for recovering differing material components from a tire material using thermal decomposition, comprising a pyrolytic chamber for accommodating the tire material and at least one microwave radiation source as a heat source for heating the tire material to a decomposition temperature of the tire material, characterized in that
- a control unit is provided, which comprises a microwave radiation control which is configured for applying microwave radiation of variable power at frequencies between 300 MHz and 2500 MHz to the tire material, and a temperature control which is configured for controlling sequentially varying predefined temperatures corresponding to decomposition temperatures of differing material components of the tire material to sequentially increase the decomposition temperature in the pyrolytic chamber, wherein several successive exit ports are provided at points of increasing product temperature along a length of the pyrolytic chamber for separately collecting the differing recovered material components along a length of the pyrolytic chamber.
Dependencies are inferred from the claim text.