Method of carrying out thermolysis and thermolysis apparatus

Anja Oasmaa (Inventor), Hannu Minkkinen (Inventor), Christian Lindfors (Inventor), Jani Lehto (Inventor), Juha Mannila (Inventor)

    Research output: PatentPatent


    A method and apparatus for thermolysing organic material. The method comprises steps of: A) feeding the material in a single-screw extruder (100), the extruder comprising -- a cylindrical rotor member (1) having diameter (D) and length (L) and comprising a feeding zone (14), -- the rotor member (1) arranged in a barrel (2), -- the cylindrical surface of the rotor member (1) carrying cavity/cavities and/or projection(s) (5) arranged in helically extending rows, -- the helically extending row(s) of the rotor member (1) having a pitch (P) and depth (d) in the feeding zone (14) of the rotor member, wherein -- the relation of the depth (d) to the diameter (D) of the rotor member, i.e. d:D, is not more than 1:20, and -- the relation of the pitch (P) of the rotor member to the diameter (D) of the rotor member, i.e. P:D, is not more than 1:4, B) heating the material in the single-screw extruder (100) to a flowable state, and C) thermolysing the material.

    Patent family as of 2.5.2022
    EP3759196 A120210106EP2019071224920190225 
    FI129499 B20220331FI2018000517520180226 
    FI20185175 A20190827FI2018000517520180226 
    US2020398475 AA20201224US2019097555820190225 
    WO19162577 A120190829WO2019FI5015220190225

    Link to current patent family on right

    Original languageEnglish
    Patent numberFI20185175
    IPCC10B 49/ 00 A I
    Priority date26/02/18
    Publication statusPublished - 27 Aug 2019
    MoE publication typeH1 Granted patent


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