METHOD AND DEVICE FOR CLEANING EXHAUST GASES

摘要

The invention relates to a method and a device for cleaning the exhaust gas (A) from a combustion process, especially a combustion process carried out in a diesel or petrol lean-mix engine. The aim of the invention is to ensure that the exhaust gas is cleaned efficiently, even if it is at a low temperature. To this end, the mixture of pollutants contained in the exhaust gas (A) is first plasma-chemically pre-treated. The pollutants contained in the pre-treated mixture of pollutants are then selectively removed from the exhaust gas by adsorption. The adsorbed pollutants are subsequently desorbed and returned to the combustion process. A corresponding device therefore comprises a reactor (1) for the plasma chemical pre-treatment of the mixture of pollutants which flows out of a combustion chamber (4) along with the exhaust gas (A), an adsorber (9, 10) which is selective towards a pollutant group, elements (17, 18) for desorbing the adsorbed pollutants, and a return circuit (16) for returning the desorbed pollutants to the combustion chamber (4).