GENERATING SYNGAS FOR NOX REGENERATION COMBINED WITH FUEL CELL AUXILIARY POWER GENERATION
During normal operation of a truck engine (12), a catalytic partial oxidizer (30) provides syngas (hydrogen and carbon monoxide) to regenerate NOx traps (35), for brief periods of time, or diverted (33) to the inlet (13) of an engine (12) via the EGR system (43-46). Some hydrogen is extracted from s...
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Zusammenfassung: | During normal operation of a truck engine (12), a catalytic partial oxidizer (30) provides syngas (hydrogen and carbon monoxide) to regenerate NOx traps (35), for brief periods of time, or diverted (33) to the inlet (13) of an engine (12) via the EGR system (43-46). Some hydrogen is extracted from syngas by a palladium membrane separator (63) and passed to the fuel inlet (52) of a fuel cell stack (51). The stack (51) provides auxiliary electric power to the truck. Humid air from the air outlet (55) of the stack is provided to a fuel/exhaust/air static mixer (25). A methanator (66) may convert CO, leaked through the palladium membranes, into CH4, Water/gas shift or steam reformer catalyst (76) at the inlet to or inside of the palladium membranes separator may provide some additional H2.
Durante una operacion normal de un motor de camion (12), un oxidante parcial catalitico (30) proporciona syngas (hidrogeno y monoxido de carbono) para regenerar trampas de NOx (35), por breves periodos de tiempo, o se desvia (33) a la entrada (13) de un motor (12) via el sistema EGR (43-46). Algo de hidrogeno es extraido del syngas por un separador de membrana de paladio (63) y pasa a la entrada de combustible (52) de una pila de celda de combustible (51). La pila (51) proporciona energia electrica auxiliar al camion. Al aire humedo de la salida de aire (55) de la pila se proporciona a un mezclador estatico de combustible/escape/aire (25). Un dispositivo de metanizacion (66) puede convertir CO, fugado a traves de las membranas de paladio, en CH4. El catalizador reformador de vapor o de desplazamiento de agua/gas (76) en la entrada o interior del separador de membranas de paladio puede proporcionar algo de H2 adicional. |
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