Carbon Nanotube Synthesis Process Apparatus
First Claim
1. A carbon nanotube synthesis process apparatus for producing a carbon nanotube by using a gas-phase method, the apparatus comprising:
- a reaction tube;
a supply unit which supplies a carbon-containing raw material from an upstream side of the reaction tube;
a heating unit which heats the reaction tube to thereby generate within the reaction tube a reaction field which thermally decomposes the carbon-containing raw material to produce a carbon nanotube;
a discharge pipe disposed on a downstream side of the reaction tube for directing the carbon nanotube produced within the reaction tube to outside; and
a swirl flow generation unit which generates a swirl flow flowing from an inner side surface of the discharge pipe along the inner side surface thereof.
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Accused Products
Abstract
A carbon nanotube synthesis process apparatus comprises a reaction tube in which a reaction field is formed, and a discharge pipe (32) arranged 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) in directions which are deflected with respect to the center (O) 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
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Citations
4 Claims
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1. A carbon nanotube synthesis process apparatus for producing a carbon nanotube by using a gas-phase method, the apparatus comprising:
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a reaction tube; a supply unit which supplies a carbon-containing raw material from an upstream side of the reaction tube; a heating unit which heats the reaction tube to thereby generate within the reaction tube a reaction field which thermally decomposes the carbon-containing raw material to produce a carbon nanotube; a discharge pipe disposed on a downstream side of the reaction tube for directing the carbon nanotube produced within the reaction tube to outside; and a swirl flow generation unit which generates a swirl flow flowing from an inner side surface of the discharge pipe along the inner side surface thereof. - View Dependent Claims (2, 3, 4)
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Specification