Patent ID: 8333928

Claim:
A fluidizing bed apparatus for producing carbon nanotubes, the fluidizing bed apparatus comprising: i) a reaction chamber comprising: a reaction space in which metal catalysts and a source gas react with one another to produce carbon nanotubes; and a dispersion plate that disperses source gas into the reaction space; ii) a rotating member increasing fluidizing of the metal catalysts in the reaction space comprising: a rotating frame rotating at edges of the reaction space; a floor blade disposed proximate to the dispersion plate to sweep metal catalysts accumulating on the dispersion plate; downward wings generating a downward current from an upper portion to a lower portion of the reaction space to prevent small metal catalyst particles escaping from the upper portion of the reaction space; and upward wings generating an upward current from the lower portion to the upper portion of the reaction space to prevent large metal catalyst particles from settling to the lower portion of the reaction space.