Activated carbon, production thereof and adsorption using activated carbon
AssigneeThe Social Welfare Foundation Hokkaido Rehabily
InventorsYoshihiro Ikenaga, Takeji Kobata
Life of this patent
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Abstract
An activated carbon has a pencil hardness of B-6B, pore size of 100-400.ANG., specific surface area of 150-500 m.sup.2 /g, pore volume of 1.3-5.0 ml/g, and if desired, CEC of 8-13 and is composed of carbon microcrystals irregularly arranged. An activated carbon can be produced by burning waste tires containing metal wires. The activated carbon can be used for removing SO.sub.2 and/or No.sub.x formed by combustion of heavy oil, or combustion of light oil. Apparatuses therefor are disclosed.
Claims5
An apparatus for removing SO.sub.2 and/or No.sub.x from an exhaust gas formed by the combustion of heavy oil which comprises a conduit for discharging the exhaust gas to the open air;(b) a screen portion fitted to said conduit across said conduit, said screen portion accommodating an activated carbon comprising carbon microcrystals irregularly arranged and difficultly graphitizable carbon which comprises difficultly graphitizable crosslinking lattices in the gaps among carbon microcrystals and has pencil hardness of from B to 6B, pore size of 100-400 .ANG., specific surface area of 150-500 m.sup.2 /g, and pore volume of 1.3-5.0 ml/g;
- wherein a first end of the screen portion is open to outside, and has a means for feeding new activated carbon, and a second end of the screen portion is open to outside and a means for discharging used activated carbon is provided near the second end opening;
- and (d) a means for controlling the feeding of the new activated carbon and the discharging of the used activated carbon by detecting the amount of the discharged used activated carbon.
Dependencies are inferred from the claim text.