Back to results
US 11,697,091 B2Granted
Sorbent devices
AssigneeCalgon Carbon Corporation
InventorMichael Greenbank
Life of this patent
Estimating the term…
Abstract
Sorbent material sheets provide for enhanced performance in vapor adsorbing applications over conventional canisters and other emissions control equipment. The sorbent material sheets can be formed as part of a small, lightweight canister, or can be integrated into a fuel tank. The sorbent material sheets can also be used as part of an onboard refueling vapor recovery system to control volatile organic compound emissions from fuel tanks of gasoline vehicles, such as automobiles.
Claims29
A vapor adsorbing canister, comprising a sorbent material sheet product that includes:
- at least two sorbent material sheets, each of which has a defined upper surface and lower surface which have a combined total surface area,
- wherein each sorbent material sheet comprises a sorbent material and a binder, the binder comprising at least one of polytetrafluoroethylenes (PTFE or TEFLON), polyvinylidene fluorides (PVF2 or PVDF), ethylene-propylene-diene (EPDM) rubbers, polyethylene oxides (PEO), UV curable acrylates, UV curable methacrylates, heat curable divinyl ethers, polybutylene terephthalate, acetal or polyoxymethylene resin, fluoroelastomers, perfluoroelastomers (FFKM) and/or tetrafluoro ethylene/propylene rubbers (FEPM), aramid polymers, para-aramid polymers, meta-aramid polymers, poly trimethylene terephthalate, ethylene acrylic elastomers, polyimide, polyamide-imides, polyurethanes, low density and high density polyethylene, polypropylene, biaxially oriented polypropylene (BoPP), polyethylene terephthalate (PET), biaxially oriented polyethylene terephthalate (BoPET), polychloroprene, and copolymers and combinations thereof,
- wherein each sorbent material sheet is stacked and arranged such that adjacent upper and lower surfaces of the separate sheets are substantially parallel and are aligned to allow fluid flow at least between the adjacent upper and lower surfaces,
- wherein the sorbent material sheet product has a void volume of about 2% to about 25%, and
- a housing at least partially encapsulating the sorbent material sheet product.
2 more elements
A vapor adsorbing canister comprising:
- a rolled sorbent material sheet product, that includes:
- a sorbent material sheet defining an upper surface and a lower surface and having a total surface area, and which comprises a sorbent material and a binder, the binder comprising at least one of polytetrafluoroethylenes (PTFE or TEFLON), polyvinylidene fluorides (PVF2 or PVDF), ethylene-propylene-diene (EPDM) rubbers, polyethylene oxides (PEO), UV curable acrylates, UV curable methacrylates, heat curable divinyl ethers, polybutylene terephthalate, acetal or polyoxymethylene resin, fluoroelastomers, perfluoroelastomers (FFKM) and/or tetrafluoro ethylene/propylene rubbers (FEPM), aramid polymers, para-aramid polymers, meta-aramid polymers, poly trimethylene terephthalate, ethylene acrylic elastomers, polyimide, polyamide-imides, polyurethanes, low density and high density polyethylene, polypropylene, biaxially oriented polypropylene (BoPP), polyethylene terephthalate (PET), biaxially oriented polyethylene terephthalate (BoPET), polychloroprene, and copolymers and combinations thereof,
- wherein the sorbent material sheet is spiral wound to form adjacent sheet layers which allow fluid flow around and between adjacent sheet layers,
- wherein the sorbent material sheet product has a void volume of about 2% to about 25%, and
- a housing at least partially encapsulating the rolled sorbent material sheet product.
2 more elements
Dependencies are inferred from the claim text.