THERMAL DECOMPOSITION APPARATUS FOR POLYMER-BASED WASTE

• Main Authors: ASAZUMA TAKAHARU, KAWAMURA MASANORI
• Format: Patent
• Language: English
• Published: 14.07.2011
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS BASED THEREON; CRACKING HYDROCARBON OILS; FUELS; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LUBRICANTS; METALLURGY; MINERAL WAXES; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To provide a thermal decomposition apparatus for polymer-based waste, which promotes thermal decomposition reaction of polymer-based waste, suppresses graphitization of carbonized material left thereafter and inhibits oxidation of the carbonized material. SOLUTION: The thermal decomposition apparatus of polymer-based waste includes a heat exchanger 1 for heating an oxygen-free gas, a thermal decomposition treatment apparatus 4 having a thermal decomposition furnace 3 that has an outlet for discharging a pyrolysis gas and an inlet for introducing an oxygen-free gas and stores the polymer-based waste 2 inside, an oil recovery apparatus 5 that cools the pyrolysis gas generated in the thermal decomposition treatment apparatus 4 and recovers a condensed oil, a circulation path 6 that supplies a residual gas as an anoxic gas after recovery of the oil by the oil recovery apparatus 5 to the heat exchanger 1. The inlet for introducing the oxygen-free gas has an oxygen-free gas introduction pipe 7 that is projected from the inner wall of the thermal decomposition furnace to a space in the furnace. COPYRIGHT: (C)2011,JPO&INPIT