Carbon nanotube synthesis process apparatus

C - Chemistry – Metallurgy – 01 – B

Patent

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C01B 31/02 (2006.01)

Patent

CA 2711378

An apparatus for producing carbon nanotubes comprises a reaction tube in which a reaction site is formed, and a discharge pipe (32) arranged in the downstream of the reaction tube and discharging carbon nanotubes to the outside. A plurality of nozzles (34) are provided on the sidewall of the discharge pipe (32), while being deviated from the center (0) of the discharge pipe (32). When gases are discharged from the plurality of nozzles (34), a swirl flowing from the inner side surface along the inner side surface is produced in the discharge pipe (32). Adhesion of carbon nanotubes to the inner side surface of the discharge pipe (32) is prevented by the swirl flow and thus the apparatus can be operated continuously.

Un appareil de production de nanotubes de carbone comprend un tube de réaction dans lequel est formé un site de réaction, et un tuyau de décharge (32) disposé en aval du tube de réaction et déchargeant les tubes de carbone vers l'extérieur. Une pluralité de buses (34) est ménagée sur la paroi latérale du tuyau de décharge (32), tout en étant déviée du centre (O) du tuyau de décharge (32). Quand les gaz sont déchargés de la pluralité de buses (34), un tourbillon s'écoulant à partir de la surface latérale interne le long de la surface latérale interne est produit dans le tuyau de décharge (32). L'adhésion des nanotubes de carbone à la surface latérale interne du tuyau de décharge (32) est empêchée par l'écoulement du tourbillon et l'appareil peut donc être actionné en continu.

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