초록

Disclosed herein an evaporative emission treatment device comprising: a housing; and an adsorption member disposed in the housing, the adsorption member comprising an adsorption component comprising an activated carbon textile made from a novoloid precursor.

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What is claimed is: 1. An evaporative emission treatment device comprising: a housing; and an adsorption member disposed in the housing, the adsorption member comprising an adsorption layer comprising an activated carbon textile made from a novoloid precursor and a porous layer adjacent the adsorpt

What is claimed is: 1. An evaporative emission treatment device comprising: a housing; and an adsorption member disposed in the housing, the adsorption member comprising an adsorption layer comprising an activated carbon textile made from a novoloid precursor and a porous layer adjacent the adsorption layer, said adsorption member being cylindrical and having a cross-section such that the adsorption layer and the porous layer are arranged in a helical geometry. 2. The evaporative emission treatment device of claim 1, wherein the adsorption layer and the porous layer form alternating layers along a diameter of the cross-section. 3. The evaporative emission treatment device of claim 2, wherein the adsorption layer forms an outer layer of the adsorption member proximate to the housing. 4. The evaporative emission treatment device of claim 2, wherein the porous layer forms an outer layer of the adsorption member proximate to the housing. 5. The evaporative emissions treatment device of claim 2, wherein the porous layer comprises a reticulated polyurethane foam. 6. The evaporative emissions treatment device of claim 2, wherein the adsorption layer comprises a thickness of less than or equal to about 4 mm. 7. The evaporative emissions treatment device of claim 2, wherein the porous layer comprises a thickness of less than or equal to about 5 mm. 8. An evaporative emission treatment device, comprising: a housing disposed around an adsorption member comprising an adsorption layer comprising an activated carbon textile having a specific surface area (as measured by the BET method) of greater than or equal to about 1,000 m2/g and a tensile strength of greater than or equal to about 20 kg/mm2, said adsorption member further comprising a porous layer adjacent the adsorption layer, said adsorption member being cylindrical and having a cross-section such that the adsorption layer and the porous layer are arranged in a helical geometry. 9. The evaporative emission treatment device of claim 8, wherein the adsorption member has a pressure drop across the adsorption member of less than or equal to about 1.5 kPa at a flow rate of 60 SLPM and a hydrocarbon emission of less than or equal to about 10 mg during a 24-hour period. 10. The evaporative emission treatment device of claim 8, wherein the adsorption member comprises alternating layers of the adsorption component and a porous component along a diameter of the cross-section. 11. The evaporative emission treatment device of claim 8, wherein the adsorption layer forms an outer layer of the adsorption member proximate to the housing. 12. The evaporative emission treatment device of claim 8, wherein the porous layer forms an outer layer of the adsorption member proximate to the housing. 13. The evaporative emissions treatment device of claim 8, wherein the porous layer comprises a reticulated polyurethane foam. 14. The evaporative emissions treatment device of claim 8, wherein the adsorption layer comprises a thickness of less than or equal to about 4 mm. 15. The evaporative emissions treatment device of claim 8, wherein the porous layer comprises a thickness of less than or equal to about 5 mm. 16. A method of making an evaporative emission treatment device, the method comprising: forming an adsorption layer comprising an activated carbon textile made from a novoloid precursor; disposing a porous layer adjacent the adsorption layer; rolling the adsorption layer and the porous layer to form a cylindrical adsorption member having a cross-section such that the adsorption layer and the porous layer are arranged in a helical geometry; and disposing the adsorption member in a housing.