Method of carrying out thermolysis and thermolysis apparatus

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United States of America Patent

PATENT NO 12030232
APP PUB NO 20200398475A1
SERIAL NO

16975558

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
TEKNOLOGIAN TUTKIMUSKESKUS VTT OYTEKNIIKANTIE 21 ESPOO 02150

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lehto, Jani Jyväskylä, FI 9 61
Lindfors, Christian Espoo, FI 2 1
Mannila, Juha Tampere, FI 2 2
Minkkinen, Hannu Tampere, FI 8 37
Oasmaa, Anja Espoo, FI 2 3

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