Patent ID: 11873749
Assignee: NOBLE DRILLING A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 9:
10. A method for operating a diesel engine comprising a combustion apparatus for combustion of diesel fuel with an oxidizer, and a Selective Catalytic Reduction (SCR) device for receiving exhaust from the combustion apparatus and configured for catalyzing conversion of nitrogen oxides in the exhaust into nitrogen and water, the method comprises:
feeding air to the combustion apparatus;
measuring the temperature of the exhaust from the combustion apparatus; and
controlling injection of hydrogen into the combustion apparatus;
wherein the injection of hydrogen into the combustion apparatus is controlled to be sufficient to reach a temperature in the exhaust of at least about 270° C.; and
mixing hydrogen and air from an air feed prior to feeding to the combustion apparatus via an inlet.