Abstract
In this thesis, the exhaust gases of a modified diesel engine and the influence of an alternative catalyst based on a cobalt alloy on emissions are investigated. This paper presents a first proof of concept for comparing different catalysts, enabling the test setup to be used in the future for evaluating and analyzing various alternative catalytic materials. The exhaust gases are analyzed for the concentration of carbon monoxide (CO), carbon dioxide (CO2 ), nitrogen oxides (N O2 and N O), and unburned hydrocarbons (HC). These measurements provide insight into the catalytic behavior and how emissions vary under different engine load conditions.
The results demonstrate that the catalyst has a clear impact on the composition of the exhaust gases. An efficient catalyst can achieve a significant reduction in harmful emissions such as N O2 and N O without requiring major modifications to the engine. The findings of this study may contribute to improved emission control strategies for marine diesel engines, helping to reduce their environmental footprint and ensure compliance with current and future emission regulations set by the IMO and other regulatory bodies.

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