Exhaust line for combustion engine in motor vehicle, has non-catalytic trapping device arranged in upstream of catalyst and permitting trapping by absorption of catalytic poison, where trapping device does not contain movable parts

摘要

The line (2) has a 2 or 3-way catalyst (3) utilized as a post-processing device for post-processing of restricted pollutants contained in exhaust gas. A non-catalytic trapping device (4) arranged in upstream of the catalyst permits trapping by adsorption of catalytic poison, where the trapping device does not contain movable parts and comprises metallic grids. The trapping device includes a monolith made of ceramic or metal. A mounting and dismounting unit permits mounting and dismounting of the trapping device.