CANISTER

PURPOSE:To efficiently carry out adsorption treatment of high concentration fuel vapor by the use of an adsorption body made of laminated active carbon sintered sheets. CONSTITUTION:Active carbon sintered sheets 1 is multilayered to have spaces therebetween to form an adsorption body 2. This adsorption body 2 is composed by bringing the sintered sheets into close contact with at least one side of reinforcing sheets 3, and preferably both faces of the sheets 3 are sandwitched by paired sintered sheets 1, 1. Furthermore, it is prefarable that ends of the reinforcing sheets 3 are made to extend toward the outside from the ends of the sheets 1, 1 to enable a good heat supply and heat radiation from the ends of the reinforcing sheets 3. In addition, a plurality of adsorption bodies 2 are arranged with spacers at specified intervals, and the ends of the reinforcing sheets 3 are connected to piping 7. 7 through which heat medium for cooling or heating passes.