Abstract: A device for the purification of an exhaust gas containing at least one contaminant removable through heterogeneous catalysis and flowing through a chamber having an inlet and an outlet, comprises at least one disk structure positionable within the chamber and defining a central cavity alignable with the inlet of the chamber. The disk structure includes a non-metallic, gas-permeable and flexible carrier element comprising a band woven of glass fiber yarn. The yarn is formed of individual fibers coated with a layer of pulverized zeolitic material defining a molecular sieve and having a catalytic material, selected to act adsorptively upon the at least one contaminant, dispersed therein.

Abstract: A process for removing undesirable constituents from a gas, including providing an immovable, non-combustible woven adsorbate element, passing a flow of the gas through the element so that the gas is sharply deflected in the element and so that the constituents are adsorptively added to the element, interrupting the gas flow when the element reaches a maximum load of adsorbed constituents, directly heating the element while the gas flow is interrupted, by applying an electric voltage, to a process temperature of at 200.degree. C.