Process for the catalytic NOx reduction of a thermal engine, and device for said purpose
OwnerHerbert Wancurainventor
Life of this patent
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Abstract
In a process for the catalytic NOx reduction in oxygen-containing exhaust gases of a thermal engine in one or several reduction catalytic converters, hydrocarbons of the fuel of the thermal engine are used in the reduction catalytic converter(s). In order to avoid toxic or dangerous substances and gases, respectively, during said NOx reduction, the process is characterized by the use of a gas mixture as a reducing agent for the reduction catalytic converter(s), which gas mixture is produced in a controlled manner from the fuel of the thermal engine in a catalytic reformer and/or in a fuel cell.
Claims29
A process for catalytic NOx reduction in oxygen-containing exhaust gases of a thermal engine in one or several reduction catalytic converters, comprising using hydrocarbons of the fuel of the thermal engine in the reduction catalytic converter(s), and using a gas mixture as a reducing agent for the reduction catalytic converter(s), and producing the gas mixture in a controlled manner in a fuel cell from fuel of the thermal engine.
A device for catalytic Nox reduction in oxygen-containing exhaust gases of a thermal engine, comprising at least one reduction catalytic converter provided in an exhaust pipe of a thermal engine, a reducing-agent feed line running into the reduction catalytic converter, a fuel cell into which a fuel pipe runs and operable to supply fuel from a fuel tank into the thermal engine and the reducing-agent feed line originates from the fuel cell.
Dependencies are inferred from the claim text.