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US 2026/0216649 A1Published application
Reduction of nox and n2o in the exhaust gas of ship motors operated using nh3
OwnerMichael GROVES, Meinhard SCHWEFER +4inventors
InventorsMichael GROVES, Meinhard SCHWEFER, Jens Christopher JENSEN, Paul KERN, Stefan PINNOW, Rolf SIEFERT
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Abstract
The invention relates to the reduction of the content of NOX and N2O in the offgas from an NH3-driven internal combustion engine. The internal combustion engine is mounted in a ship and serves to move the ship.
Claims25
An apparatus comprising:
- (i) an internal combustion engine which is configured to be powered by combustion of NH3 and which is mounted in a ship and configured to move the ship;
- and
- (ii) an offgas treatment system configured to reduce the content of NOX and N2O in an offgas produced by combustion from the NH3 and comprising N2, H2O, NOX and N2O, wherein the offgas treatment system comprises:
- an N2O decomposition catalyst configured to decompose N2O;
- and/or an N2O reduction catalyst configured for chemical reduction of N2O with reducing agent;
- and
- an NOX reduction catalyst configured for chemical reduction of NOX with reducing agent.
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Dependencies are inferred from the claim text.