Abstract: An invention is disclosed for efficiently improving the working capacity and useful service life of an adsorber system by selectively heating the adsorbent towards the purge outlet of the fluid path.

Abstract: An invention is disclosed for efficiently improving the working capacity and useful service life of an evaporative emission control canister by selectively heating the adsorbent towards the purge outlet of the vapor path.

Abstract: An adsorbent material, and method for making same, is disclosed wherein an application is made on the adsorbent material of a polymer coating with surface porosity. The product adsorbent material retains it adsorptive properties, while the coating provides advantages such as reduced dusting. For particulate or pellet forms of adsorbents, a reduction in attrited dust is useful for improved performance in emission control systems. The coating may also be used to color the product.

Abstract: Color-coated activated carbon and method of preparation are disclosed in the product of application of a thin, continuous coating of an insoluble colorant-containing polymer emulsion on the material, without causing a reduction in adsorption capacity of the untreated activated carbon. In addition, the resultant avoidance of carbon dust leads to improved performance for contaminant removal.

Abstract: Product attrition by dusting of granular and shaped activated carbons is disclosed to be reduced significantly, or essentially eliminated, by the application of a thin, continuous polymer coating on the granular or shaped activated carbon, without a reduction in adsorption velocity, packing density, or volumetric capacity of the activated carbon when used in fluid stream filters for removing contaminants. The avoidance of carbon dust and the maintenance of the carbon particle packing density lead to improved fluid stream filter performance in contaminant removal.