Manufacturing method for a carbon nanomaterial, a manufacturing apparatus for a carbon nanomaterial, and manufacturing facility for a carbon nanomaterial

1. A carbon nanomaterial fabrication method comprising:

fabricating a carbon nanomaterial having a tube shape or a fiber shape with carbon as a main constituent with a compound that includes carbon and an additive that includes a metal by using a fluidized bed reactor, wherein the fluidized bed reactor comprises a fluidized bed reactor furnace filled with a fluidized medium having a specific gravity and particle diameter sufficiently larger than those of the carbon nanomaterial being fabricated;

wherein at least the compound that includes carbon, the additive that includes a metal and an inert gas are supplied into the fluidized bed reactor furnace;

wherein the fluidized bed, formed by floating of the fluidized medium, is maintained within a predetermined temperature range and a predetermined pressure range; and

wherein the superficial velocity is set larger than the minimum fluidization velocity of the fluidized medium.

2. The carbon nanomaterial fabrication method of claim 1 , wherein the carbon nanomaterial fabricated by said fabricating comprises carbon nanotubes or carbon fibers having a tube diameter or fiber diameter equal to or less than 100 nm.

3. The carbon nanomaterial fabrication method of claim 1 , wherein a plurality of species having different minimum fluidization velocities are used as the fluidized medium.

4. The carbon nanomaterial fabrication method of claim 1 , wherein the additive that includes a metal is one or a plurality of compounds that include one or a plurality of iron (Fe), nickel (Ni) and cobalt (Co).

5. A carbon nanomaterial fabrication method in which a carbon nanomaterial having a tube shape or a fiber shape with carbon as a main constituent is fabricated with a compound that includes carbon and an additive that includes a metal by using a fluidized bed reactor, including:

the fluidized bed reactor comprising a fluidized bed reactor furnace inside the fluidized bed reactor; and

an upper exit gas velocity in fluidized bed reactor furnace being smaller than the fluidized bed gas velocity.

6. A carbon nanomaterial fabrication method in which a carbon nanomaterial having a tube shape or a fiber shape with carbon as a main constituent is fabricated with a compound that includes carbon and an additive that includes a metal by using a fluidized bed reactor, wherein the compound that includes carbon is a material that includes carbon and thermodynamically deposits the carbon.

7. A carbon nanomaterial fabrication apparatus comprising:

a fluidized bed reactor in which a tube or fiber shaped carbon nanomaterial having carbon as a main constituent is fabricated by reacting a compound that includes carbon and an additive that includes metal;

wherein said fluidized bed reactor comprises a fluidized bed reactor furnace which is filled with a fluidized medium having a specific gravity and particle diameter that is sufficiently larger than those of the carbon nanomaterial being fabricated;

at least a compound that includes carbon, an additive that includes a metal and an inert gas supplied to said fluidized bed reactor furnace;

wherein said fluidized bed reactor is operable to maintain a fluidized bed, formed by floating of said fluidized medium, within a predetermined temperature range and a predetermined pressure range; and

said fluidized medium has the superficial velocity thereof set higher than the minimum fluidization velocity thereof.

8. The carbon nanomaterial fabrication apparatus of claim 4 , wherein a tube diameter or fiber diameter of the carbon nanomaterial is equal to or less than 100 nm.

9. A carbon nanomaterial fabrication apparatus comprising:

a fluidized bed reactor in which a tube or fiber shaped carbon nanomaterial having carbon as a main constituent is fabricated by reacting a compound that includes carbon and an additive that includes metal;

wherein said fluidized bed reactor comprises a fluidized bed reactor furnace which is filled with a fluidized medium having a specific gravity and particle diameter that is sufficiently larger than those of the carbon nanomaterial being fabricated;

at least a compound that includes carbon, an additive that includes a metal and an inert gas supplied to said fluidized bed reactor furnace;

a fluidized bed, formed by floating of said fluidized medium, maintained within a predetermined temperature range and a predetermined pressure range;

the superficial velocity being set higher than the minimum fluidization velocity of said fluidized medium; and

said fluidized bed being a bubbling fluidized bed.

10. Carbon nanomaterial fabrication apparatus comprising:

a fluidized bed reactor in which a tube or fiber shaped carbon nanomaterial having carbon as a main constituent is fabricated by reacting a compound that includes carbon and an additive that includes metal;

wherein said fluidized bed reactor comprises a fluidized bed section and a free board section, said free board section having a larger flow path cross-sectional area than said fluidized bed section, and said free board section being provided on an upper exit side of said fluidized bed section.

11. A carbon nanomaterial fabrication apparatus comprising:

a fluidized bed reactor in which a tube or fiber shaped carbon nanomaterial having carbon as a main constituent is fabricated by reacting a compound that includes carbon and an additive that includes metal;

wherein said fluidized bed reactor comprises a fluidized bed reactor furnace which is filled with a fluidized medium having a specific gravity and particle diameter that is sufficiently larger than those of the carbon nanomaterial being fabricated;

at least a compound that includes carbon, an additive that includes a metal and an inert gas supplied to said fluidized bed reactor furnace;

a fluidized bed, formed by floating of said fluidized medium, maintained within a predetermined temperature range and a predetermined pressure range;

the superficial velocity being set higher than the minimum fluidization velocity of said fluidized medium; and

said fluidized medium comprises a plurality of species having different minimum fluidization velocities.

12. A carbon nanomaterial fabrication apparatus comprising a fluidized bed reactor in which a tube or fiber shaped carbon nanomaterial having carbon as a main constituent is fabricated by reacting a compound that includes carbon and an additive that includes metal, wherein the compound that includes carbon is a material that includes carbon and deposits the carbon thermodynamically.

13. A carbon nanomaterial fabrication apparatus comprising a fluidized bed reactor in which a tube or fiber shaped carbon nanomaterial having carbon as a main constituent is fabricated by reacting a compound that includes carbon and an additive that includes metal, wherein the additive that includes a metal is one or a plurality of compounds that include one or a plurality of iron (Fe), nickel (Ni) and cobalt (Co).

14. A carbon nanomaterial fabrication facility comprising:

a carbon nanomaterial fabrication apparatus comprising a fluidized bed reactor in which a tube or fiber shaped carbon nanomaterial having carbon as a main constituent is fabricated by reacting a compound that includes carbon and an additive that includes metal;

a raw material supply device that continuously supplies a predetermined amount of a compound that includes carbon to said carbon nanomaterial fabrication apparatus;

an additive supply device that continuously supplies a predetermined amount of an additive that includes a metal to said carbon nanomaterial fabrication apparatus;

a gas supply that continuously supplies a predetermined amount of an inert gas to said carbon nanomaterial fabrication apparatus; and

a particle recovery device that recovers a carbon nanomaterial fabricated by said carbon nanomaterial fabrication apparatus.

15. The facility of claim 14 , wherein said particle recovery device comprises at least one of a carbon nanomaterial trapping apparatus, a cyclone, and a filter.

16. The facility of claim 14 , wherein a discharge gas processing device is provided downstream of said particle recovery device.

17. The facility of claim 16 , and further comprising a gas concentration detecting device to detect a harmful gas concentration in discharged gas and to carry out operation control by associating a detection signal with a harmful gas concentration.

18. The facility of claim 16 , wherein the entirety of said facility is accommodated in a closed space provided with a ventilation device.