公开(公告)号：US12030232B2

公开(公告)日：2024-07-09

申请号：US16975558

申请日：2019-02-25

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

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

IPC: C10B47/44 ,  B29B7/42 ,  B29B7/72 ,  B29B7/82 ,  B29C48/59 ,  B29C48/68 ,  C10B1/06 ,  C10B7/10 ,  C10B53/07 ,  B29B7/92

CPC classification number: B29C48/681 ,  B29B7/422 ,  B29B7/425 ,  B29B7/72 ,  B29B7/826 ,  B29C48/59 ,  C10B1/06 ,  C10B7/10 ,  C10B47/44 ,  C10B53/07 ,  B29B7/92

Abstract: 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.