Abstract: PROBLEM TO BE SOLVED: In an apparatus for synthesizing methane from carbon dioxide and hydrogen, a device which is capable to remove the reaction heat and lower the reaction temperature as the reaction progresses in order to increase the conversion ratio to methane has been desired. SOLUTION: In the present invention, powders of magnesium hydroxide and magnesium carbonate, which are chemical heat storage agents, are used as part of the fluidizing medium of the multi-stage fluidized bed in the temperature range where the methanation reaction proceeds. The heat generated during the methanation reaction can be absorbed and stored in the powder. At this time, carbon dioxide generated from magnesium carbonate can be used as a raw material gas for the methanation reaction. Furthermore, after discharging the magnesium oxide generated by endotherm, the powder can be regenerated with an external regenerating facility and then the storage heat can be released and recovered.

Abstract: An apparatus for continuous high temperature gas treatment of particulate matter including a starting material supply port (1) through which starting particulate matter is supplied from an upper part of the apparatus; a treatment, gas supply port (2) through which a treating gas is supplied; a product discharge port (3) through which a product after treatment is discharged from a lower part of the apparatus; a treatment chamber (4) in which the particulate matter is treated with the treatment gas; a gas-solid separation chamber (5) provided in fluid communication with an upper part of the treatment chamber (4); and a cooling chamber (6) provided in fluid communication with a lower part of the treatment chamber (4). A heater (7) is provided on the outer periphery of the upper part of the treatment chamber (4), and a cooler (8) is provided on the outer periphery of the cooling chamber (6).

Abstract: An apparatus for continuous high temperature gas treatment of particulate matter including a starting material supply port (1) through which starting particulate matter is supplied from an upper part of the apparatus; a treatment, gas supply port (2) through which a treating gas is supplied; a product discharge port (3) through which a product after treatment is discharged from a lower part of the apparatus; a treatment chamber (4) in which the particulate matter is treated with the treatment gas; a gas-solid separation chamber (5) provided in fluid communication with an upper part of the treatment chamber (4); and a cooling chamber (6) provided in fluid communication with a lower part of the treatment chamber (4). A heater (7) is provided on the outer periphery of the upper part of the treatment chamber (4), and a cooler (8) is provided on the outer periphery of the cooling chamber (6).

Abstract: An apparatus for continuous high temperature gas treatment of particulate matter including a starting material supply port (1) through which starting particulate matter is supplied from an upper part of the apparatus; a treatment gas supply port (2) through which a treating gas is supplied; a product discharge port (3) through which a product after treatment is discharged from a lower part of the apparatus; a treatment chamber (4) in which the particulate matter is treated with the treatment gas; a gas-solid separation chamber (5) provided in fluid communication with an upper part of the treatment chamber (4); and a cooling chamber (6) provided in fluid communication with a lower part of the treatment chamber (4). A heater (7) is provided on the outer periphery of the upper part of the treatment chamber (4), and a cooler (8) is provided on the outer periphery of the cooling chamber (6).

Abstract: An object of the present invention is to provide an apparatus for continuous high temperature gas treatment of particulate matter, which can perform uniform high temperature gas treatment of particulate matter; and a method for treating particulate matter using the continuous high temperature gas treatment of particulate matter. The apparatus comprises a starting material supply port 1 through which starting particulate matter is supplied from an upper part of the apparatus; a treating gas supply port 2 through which a treating gas is supplied; a product discharge port 3 through which a product after treatment is discharged from a lower part of the apparatus; a treatment chamber 4 in which the particulate matter is treated with the treating gas; a gas-solid separation chamber 5 provided in fluid communication with an upper part of the treatment chamber 4; and a cooling chamber 6 provided in fluid communication with a lower part of the treatment chamber 4.

Abstract: A battery electrode material having a large charge-discharge capacity and capable of providing a (non-aqueous solvent-type secondary) battery of a high energy density is provided in the form of a carbonaceous material having a microtexture suitable for doping with lithium (ions). Such a carbonaceous material is produced through a process of heating a starting organic material for carbonization including a step of heating the organic material in a halogen gas-containing inert gas atmosphere in a specific temperature range (800.degree.-1400.degree. C.) below the final carbonization temperature.