| abstract |
The invention discloses a hydrogen-ammonia fuel engine exhaust aftertreatment system, comprising an exhaust gas catalytic device and an ammonia gas supply device, the exhaust gas catalytic device is used for converting ammonia gas NH 3 and nitrogen oxide NO in exhaust gas X , the ammonia gas supply device is used for supplying ammonia gas NH 3 into the exhaust gas catalytic device; the exhaust gas catalytic device comprises a first SCR catalyst, a first exhaust pipe, a second SCR catalyst, The second exhaust pipe and the ammonia slip catalyst ASC, the inlet of the first SCR catalyst is connected to the outlet of the exhaust pipe of the hydrogen-ammonia fuel engine, and the end of the ammonia gas supply device is installed on the first exhaust pipe . It can reduce the high concentration of ammonia NH 3 and nitrogen oxides NO X emissions in the exhaust gas of hydrogen-ammonia fueled engines to near zero levels. |