PYROLYSIS PROCESS OF WASTE TIRE AT LOW TEMPERATURE USING SUPERCRITICAL FLUID

摘要

PURPOSE: Provided is a pyrolysis process for recovering oil by pyrolyzing a waste tire into a low molecular compound at a low temperature, by using supercritical fluid. CONSTITUTION: The pyrolysis process comprises the steps of: injecting the waste tire and cyclohexane as a solvent into a reactor; elevating temperature at a speed of 5C/min. up to predetermined temperature using a heater and a PID temperature controller; performing the pyrolysis at 300-350C under a pressure of 5-15 MPa for 1 hour; cooling the resultant using a heat exchanger; separating a pyrolyzed solution and a residue; examining the pyrolyzed solution to identify main components and a distribution thereof using a GC-MS(gas chromatographic-mass spectro-metric); drying the residue followed by examining a mass-reducing rate of the dried residue using a TGA(thermal gravitational analysis).