Activated carbon and canister and intake air filter utilizing the same
AssigneeCataler Corporation
InventorsHirokazu Aono, Takayuki Suzuki, Yuji Mochizuki
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Abstract
The present invention provides an activated carbon having an average length/average diameter (L/D) of 0.8 to 1.2 and a difference between the 1/1-volume benzene adsorption rate and the 1/10-volume benzene adsorption rate of 6.0 g/100 mL or more, and a canister and an intake air filter utilizing such activated carbon as an adsorbent. The activated carbon has a substantially spherical configuration and excellent hydrocarbon adsorption/desorption capacity. A canister and an intake air filter utilizing such activated carbon as an adsorbent have excellent hydrocarbon adsorption/desorption capacity.
Claims16
An activated carbon having an average length/average diameter (L/D) of 0.8 to 1.2 and a difference between the 1/1-volume benzene adsorption rate and the 1/10-volume benzene adsorption rate of 8.6 g/100 mL or more;
- wherein the 1/1-volume benzene adsorption rate is a product obtained by multiplying the volume-based equilibrium benzene adsorption capacity (%) that is obtained using 1/1 benzene vapor for calculation in accordance with JIS 1474 5.12 by the packing capacity (g/100 mL) that is obtained in accordance with JIS 1474 5.7, and the 1/10-volume benzene adsorption rate is a product obtained by multiplying the volume-based equilibrium benzene adsorption capacity (%) that is obtained using 1/10 benzene vapor for calculation in accordance with JIS 1474 5.12 by the packing capacity (g/100 mL) that is obtained in accordance with JTS 1474 5.7.
An activated carbon having an average length/average diameter (L/D) of 0.8 to 1.2, a difference between the 1/1-volume benzene adsorption rate and the 1/10-volume benzene adsorption rate of 8.6 g/100mL or more, and a packing density of 0.40 g/ml or less which is obtained by a process which comprises preparing a blended product by blending raw materials which contains a powdered activated carbon, preparing a granular carbon by shaping the blended product and agitation treatment of the granular carbon.
An activated carbon having an average length/average diameter (LD) of 0.8 to 1.06, a difference between the 1/1-volume benzene adsorption rate and the 1/10-volume benzene adsorption rate of 8.8 g/100mL or more, and a packing density of 0.40 g/ml or less which is obtained by a process which comprises preparing a blended product by blending raw materials which contains a powdered activated carbon, preparing a granular carbon by shaping the blended product, and agitation treatment of the granular carbon in a water vapor atmosphere.
Dependencies are inferred from the claim text.