FIELD: recovery of plastics or other constituents of waste materials.
SUBSTANCE: method includes heat processing of used tires and industrial rubber articles in recirculating pyrolysis gases in a reactor at 200-500°C and separating the pyrolysis products in a separation apparatus. The pyrolysis products, C1-C4 hydrocarbons, are fed to the bottom section of the reactor from the separation apparatus. The flue gases outflow from the furnace of the reactor, flow through the heat exchanger mounted inside the reactor in order to heat the recirculating gases and material to be processed, and are fed to the hopper for heating grinded material.
EFFECT: reduced power consumption.
2 cl, 1 dwg, 1 tbl
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Authors
Dates
2005-03-27—Published
2003-06-18—Filed