Abstract: Catalyst support means for producing a fluid catalyst; a reduction basin that pretreats an active metal of the obtained fluid catalyst in a reducing atmosphere; a fluid bed reactor which is supplied with a reduction-treated fluid catalyst having undergone the reduction, for producing a nanocarbon material; and a moisture application basin for supplying a slight amount of moisture to a source gas to be supplied to the aforementioned fluid bed reactor are provided.

Abstract: The present invention provides a catalyst for forming carbon nanotubes that improves a yield at the time of manufacturing carbon nanotubes and enables continuous mass production of carbon nanotubes with high purity. The catalyst for forming carbon nanotubes of the present invention includes a carrier that includes MgO and a metal catalyst that is supported by the carrier, and the concentration of the MgO in the carrier is set equal to 99 mass % or higher.

Abstract: The present invention provides a catalyst for carbon nanotube production capable of continuously mass-producing a carbon nanotube having a long fiber length and excellent conductivity. The catalyst for carbon nanotube production of the present invention includes a carrier particle which is configured to include a metal oxide and has voids therein, and a metal catalyst which is carried on the carrier particle. In a pore distribution curve of the carrier particle which is obtained by a mercury penetration method, when an integrated value of volumes of pores having a pore size of equal to or larger than 0.1 ?m is set to be a volume of voids per unit mass of the carrier particle, the volume of the voids is set to be in a range of 0.6 cm3/g to 2.2 cm3/g.

Abstract: The present invention provides a catalyst for forming carbon nanotubes that improves a yield at the time of manufacturing carbon nanotubes and enables continuous mass production of carbon nanotubes with high purity. The catalyst for forming carbon nanotubes of the present invention includes a carrier that includes MgO and a metal catalyst that is supported by the carrier, and the concentration of the MgO in the carrier is set equal to 99 mass % or higher.

Abstract: Catalyst support means for producing a fluid catalyst; a reduction basin that pretreats an active metal of the obtained fluid catalyst in a reducing atmosphere; a fluid bed reactor which is supplied with a reduction-treated fluid catalyst having undergone the reduction, for producing a nanocarbon material; and a moisture application basin for supplying a slight amount of moisture to a source gas to be supplied to the aforementioned fluid bed reactor are provided.

Abstract: A flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).

Abstract: An apparatus for regenerating an adsorbent includes an electrolytic cell filled with an electrolyte and an electrode unit that includes a first electrode made from the adsorbent in which a substance is adsorbed and a second electrode. The first electrode and the second electrode are soaked in the electrolyte. The apparatus also includes a power source that supplies a voltage applied between the first electrode and the second electrode.

Abstract: A metallic material, such as chromium or iron, is added to a carbon material, such as activated carbon fibers, activated carbon, graphite, carbon nanotube, or nanocarbon. The resulting carbon material is used to remove hazardous substances (for example, sulfur contents) in an exhaust gas.

Abstract: A desulfurization apparatus for desulfurizing a flue gas containing sulfur oxides through contact with a porous carbon material. The carbon material, which is provided in a desulfurization tower, is at least one species selected from activated carbon and activated carbon fiber. The apparatus contains an NO2-gas-feeding apparatus for feeding NO2 gas into the desulfurization tower. Within the desulfurization tower, a showering mechanism is provided at the top, the showering mechanism adjusting water content of the flue gas in the desulfurization tower to that corresponding to saturation with water vapor or higher at the treatment temperature.

Abstract: A flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).

Abstract: A flue gas processing apparatus for removing sulfur oxide contained in a gas, including a desulfurization tower through which the gas flows, the desulfurization tower including a catalyst unit having at least one activated carbon fiber board which adsorbs the sulfur oxide and a water-supply device configured to supply water to the catalyst unit so as to form sulfuric acid from the sulfur oxide adsorbed to the at least one activated carbon fiber board, the water-supply device being positioned above the catalyst unit in the desulfurization tower, and a pressurizing device configured to apply pressure to the gas supplied to the desulfurization tower so as to flow the gas through the catalyst unit by the pressure.

Abstract: The invention provides a flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).

Abstract: The invention provides a flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).

Abstract: An apparatus for regenerating an adsorbent includes an electrolytic cell filled with an electrolyte; and an electrode unit that includes a first electrode made from the adsorbent in which a substance is adsorbed and a second electrode. The first electrode and the second electrode are soaked in the electrolyte. The apparatus also includes a power source that supplies a voltage applied between the first electrode and the second electrode.

Abstract: The invention provides a flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).

Abstract: The invention provides a flue gas processing apparatus including a catalyst unit (6) formed of at least one activated carbon fiber board (20), and water-supply means (7) for supplying, to the catalyst unit (6), water for forming sulfuric acid, the catalyst unit (6) being provided in the apparatus in the form of a tower (4) through which a discharge gas containing sulfur oxide passes, the water-supply means (7) being provided above the catalyst unit (6) or in an upper section of the unit (6) and in the apparatus in the form of a tower (4), wherein the activated carbon fiber board (20) provided in the catalyst unit is formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets (21) and one or more corrugated activated carbon fiber sheets (22) so as to provide vertically extending conduits (15), and the flue gas processing apparatus includes pressurizing means (3) for applying pressure to the discharge gas, to thereby cause the gas to pass through the conduits (15) of the catalyst un

Abstract: The present invention provides a desulfurization apparatus 10 for desulfurizing a flue gas 13 containing sulfur oxides through contact with a porous carbon material 11. The carbon material 11, which is provided in a desulfurization tower 12, is at least one species selected from activated carbon and activated carbon fiber. The apparatus 10 contains an NO2-gas-feeding apparatus 14 for feeding NO2 gas into the desulfurization tower 12. Within the desulfurization tower 12, showering means 15 is provided at the top, the showering means adjusting the water content of the flue gas in the desulfurization tower to that corresponding to saturation with water vapor or higher at the treatment temperature.