| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for improving the reaction efficiency of a reducing agent with nitrogen oxide. <P>SOLUTION: The method for reducing the nitrogen oxide (NOx) contained in an exhaust gas processes the nitrogen oxide (NOx) contained in the exhaust gas in the presence of a catalyst carried on silica gel, zeolite or a metal oxide inside a reactor where the inlet temperature of a catalytic reactor is kept lower than the outlet temperature of the catalytic reactor to take out nitrogen gas. In the method for reducing the nitrogen oxide (NOx) contained in the exhaust gas, the inlet temperature of the catalytic reactor is kept at 150 to 300°C and the outlet temperature of the catalytic reactor is kept at 350 to 600°C. <P>COPYRIGHT: (C)2007,JPO&INPIT |
