| 摘要 |
PURPOSE: A reduction method of nitrogen oxide effectively returns nitrogen oxide to nitrogen and presents excellent nitrogen oxide reduction efficiency. CONSTITUTION: A reduction method of nitrogen oxide comprises a step of injecting a reducing agent including an amine compound and exhaust gas including nitrogen oxide to a catalyst system. The catalyst system includes a carrier alumina (Ag/Al2O3) catalyst. The amine compound is selected one from a group of monoethanolamine, ethylamine and their combination. [Reference numerals] (AA) Example 1 (Monoethanolamine); (BB) Example 1 (Ethylamine); (CC) Comparative example 1 (Ethanol + Ammonia); (DD) Comparative example 2 (Ethanol); (EE) Comparative example 3 (Ammonia) |
