US 12,269,742 B2
Manufacturing apparatus and manufacturing method for carbon nanotube
Suguru Noda, Tokyo (JP); Katsuya Namiki, Tokyo (JP); Zihao Zhang, Tokyo (JP); Toshio Osawa, Tokyo (JP); and Hisashi Sugime, Tokyo (JP)
Assigned to WASEDA UNIVERSITY, Tokyo (JP); and MEIJO NANO CARBON CO., LTD., Aichi (JP)
Filed by WASEDA UNIVERSITY, Tokyo (JP); and MEIJO NANO CARBON CO., LTD., Aichi (JP)
Filed on May 30, 2024, as Appl. No. 18/678,425.
Application 18/678,425 is a continuation of application No. 17/632,730, abandoned, previously published as PCT/JP2020/028754, filed on Jul. 27, 2020.
Claims priority of application No. 2019-147941 (JP), filed on Aug. 9, 2019.
Prior Publication US 2024/0308852 A1, Sep. 19, 2024
Int. Cl. C01B 32/162 (2017.01); B01J 4/00 (2006.01); B01J 6/00 (2006.01); B82Y 40/00 (2011.01)
CPC C01B 32/162 (2017.08) [B01J 4/002 (2013.01); B01J 4/008 (2013.01); B01J 6/008 (2013.01); B01J 2204/002 (2013.01); B82Y 40/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A carbon nanotube production device comprising:
a synthesis furnace for synthesizing carbon nanotubes;
a catalyst raw material supplying nozzle for supplying a catalyst raw material used to synthesize the carbon nanotubes to the synthesis furnace;
a heater provided inside the catalyst raw material supplying nozzle, said heater capable of setting a temperature of an inner portion of the catalyst raw material supplying nozzle higher than a temperature of a reaction field of the synthesis furnace to thermally decompose the catalyst raw material; and
a carbon raw material supplying portion for supplying a carbon raw material through a carbon raw material flow passage to the synthesis furnace,
wherein the decomposed catalyst raw material supplied from the catalyst raw material supplying nozzle and the carbon raw material provided through the carbon raw material flow passage are mixed together in the reaction field of the synthesis furnace.