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TU-Clausthal Centre for Material Technology

Plasma-based process for reducing emissions from marine diesel engines

Project manager: Prof. Dr. W. Maus-Friedrichs

Funding period: 01/2015 - 12/2015
Funding body: Alfred Kärcher-Förderstiftung
Funding code: -

Responsible: M.Sc. Lisa Wurlitzer

The aim of this project is to develop a plasma-based filter system on a laboratory scale based on a dielectric barrier discharge (DBE). In addition, gas samples are to be prepared and taken from the exhaust gas of running marine diesel engines. On the basis of these gas samples, a parameter study on the plasma system will then be carried out using the real exhaust gas samples. The aim is to enable subsequent industrial production of the first prototypes.

The purification of such an exhaust gas with sulphur, nitrogen oxide and soot emissions is to be carried out in a three-stage process. In the first step, the soot particles are gasified to carbon dioxide by means of an initial plasma discharge and the sulphur is precipitated. The separated sulphur particles are then transferred to a storage tank in the gas flow. In a second discharge at the outlet of the container, the remaining sulphur residues are plasma-chemically stored in a powdery bulk material before a catalyst decomposes the nitrogen oxides in the afterglow of the plasma.