Device and method for exhaust gas post treatment and use thereof
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorsRobert Szolak, Alexander Susdorf, Florian Rümmele
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Abstract
A method for exhaust gas post treatment is provided, comprising the following steps: a) providing a nitrogen oxide-containing raw exhaust gas, b) introducing the nitrogen oxide-containing raw exhaust gas into a catalytic evaporator (1), c) introducing a fuel into the catalytic evaporator (1), whereby a converted fuel is obtained, d) mixing urea with the converted fuel, and e) feeding the mixture obtained after step d) into an exhaust gas post treatment system (8). Alternatively or in addition, a device may be provided for exhaust gas post treatment.
Claims14
A method for exhaust gas post treatment, comprising:
- a) providing a nitrogen oxide-containing raw exhaust gas from an engine,
- b) introducing the nitrogen oxide-containing raw exhaust gas into a catalytic evaporator,
- c) introducing a fuel into the catalytic evaporator so as to obtain a converted fuel, wherein said converted fuel comprises any of H2, CO, and hydrocarbons having 1 to 10 C atoms,
- d) mixing urea with the converted fuel, and
- e) supplying the mixture obtained according to step d) to an exhaust gas post treatment system.
A device for exhaust gas post treatment, comprising:
- a catalytic evaporator,
- a raw exhaust gas supply line to the catalytic evaporator, configured to introduce nitrogen oxide-containing raw exhaust gas from an engine into the catalytic evaporator,
- a fuel supply line to the catalytic evaporator, configured to introduce fuel into the catalytic evaporator,
- a discharge line from the catalytic evaporator, configured to discharge the evaporated fuel from the catalytic evaporator, and
- an exhaust gas post treatment system, wherein
- the catalytic evaporator is configured to provide a converted fuel to the exhaust gas post treatment system, said converted fuel comprising any of H2, CO, and hydrocarbons having 1 to 10 C atoms.
Dependencies are inferred from the claim text.