|
SCR(Selective Catalytic Reduction System) |
 |
Principle of the SCR system(Reduction reaction by Urea)
 |
Urea is injected by the Urea injection device.The Urea is decomposed into ammonia and carbon dioxide by the heat form exhaust gas. |
 |
|
 |
Generated ammonia,nitrogen oxides and oxygen are decomposed into nitrogen and water by the catalyst in the reactor. |
 |
Composition of the SCR system
Dimension table of Examples of standard SCR reactors
| Engine Model | Engine Output | Dimensions of Reactor(mm) | Mass of Reactor | ||
|---|---|---|---|---|---|
| kWm | L | W | H | t | |
| 6MG25HX | 1323 | 967 | 967 | 3500 | 1.8 |
| 6MG28HX | 1838 | 1909 | 967 | 3550 | 2.6 |
| 6MG28AHX | 2220 | 1438 | 967 | 3800 | 2.5 |
| 8MG28AHX | 2960 | 1438 | 1438 | 3900 | 3.2 |
| 9MG28AHX | 3330 | 1438 | 1438 | 3900 | 3.2 |
※This system can reduce NOx emissions by 80%.
※This table is MDO use.Please contact Niigata if using HFO.
※All infomation will be subject to change without notice.
