| 摘要 |
<p>The invention concerns a method and an apparatus for removing lead compounds and other harmful compounds by chemisorption from the exhaust gases of an internal combustion engine. The method comprises filtering of the exhaust gases and concurrent chemisorption of lead by reactants which are contacted with the exhaust gases over a very large surface area provided by a coating of filler materials which act as supports for the reactants. The apparatus for implementing the above method comprises a filter system (6) mounted on the exhaust pipe (11) of an engine, the filter delimiting labyrinth paths for the gases effective to contact the latter with substances which are adapted to absorb the lead contained in the gases by chemical reaction therewith.</p> |
