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    • 6. 发明公开
    • A PYROLYSIS SYSTEM, A METHOD FOR PRODUCING PURIFIED PYROLYSIS GAS AND PYROLYSIS LIQUIDS AND USE OF A PYROLYSIS SYSTEM
    • EP3858950A1
    • 2021-08-04
    • EP20154881.5
    • 2020-01-31
    • Danmarks Tekniske Universitet
    • HENRIKSEN, Ulrik BirkAHRENFELDT, Jesper
    • C10B49/06C10B53/02C10K1/04C10K3/00C10K3/02
    • Disclosed is a pyrolysis system (1) comprising a pyrolysis reactor (2) arranged for producing pyrolysis gas and a first condensing unit (3) arranged to cool the pyrolysis gas to a first temperature to condense a first pyrolysis liquid (20). The system further comprises a second condensing unit (4) arranged to cool the pyrolysis gas to a second temperature to condense a second pyrolysis liquid (21), wherein the first temperature is higher than the second temperature. The system also comprises a return conduit (5) arranged to guide a portion of the pyrolysis gas back into the pyrolysis reactor (2) to drive the pyrolysis process, and heating means (6) arranged to increase the temperature of the portion of the pyrolysis gas before it reenters the pyrolysis reactor (2). The pyrolysis reactor (2) is a fixed bed counterflow pyrolysis reactor (2) comprising a pyrolysis gas outlet (7) arranged at an upper part (8) of the pyrolysis reactor (2) through which the produced pyrolysis gas leaves the pyrolysis reactor (2), a pyrolysis gas inlet (9) arranged at a lower part (10) of the pyrolysis reactor (2), through which the heated pyrolysis gas reenters the pyrolysis reactor (2), a feedstock inlet (11) arranged at the upper part (8) of the pyrolysis reactor (2) through which feedstock (19) enters the pyrolysis reactor (2) and a char outlet (12) arranged at the lower part (10) of the pyrolysis reactor (2), through which char produced in the pyrolysis reactor (2) leaves the pyrolysis reactor (2).
      Furthermore, a method for producing producing purified pyrolysis gas and pyrolysis liquids and use of a pyrolysis system (1) is disclosed.