A new concept of reducing nitrogen oxides emissions in a combustion engine -- combination of ceramic oxygen conductors and thermoelectric materials

The subject of this work is to present a new concept of reducing NO_x emissions in a combustion engine based on full elimination of nitrogen from a supply system. The use of the oxygen separator (oxygen pump), composed of the ceramic ionic conductor, together with an electrical supply system based on thermoelectric materials that utilizes exhaust heat is the main assumption of the proposed solution. The paper focuses on analyzing several possibilities for the practical application of the idea suggested