Method for removing nitrogen oxide contained in exhaust gas
专利汇可以提供Method for removing nitrogen oxide contained in exhaust gas专利检索，专利查询，专利分析的服务。并且PURPOSE: To obtain a high removing efficiency for NOX, even in a case of existing NOX gas having ≤1.0mol ratio of NO/NO
2 in the exhaust gas by feeding NH
4 HCO
2 or a mixed gas of NH
3 and HCOOH into the exhaust gas.
CONSTITUTION: NH
4 HCO
2 or its decomposition gas composed of a mixture of NH
3 and HCOOH is fed to a gas contg. NO
2 (mol ratio of NO/NO
2 ≤0.1) through a pipe 1 before a denitrizer 4 via a feeding line 2 of NH
4 HCO
2 , followed by contacting NO
2 gas with a catalyst 5 filled in the denitrizer 4 to convert NO
2 to NO, and at the same time, the gas to be treated having ≥1.0mol ratio of NO/NO
2 is effected a denitrization reaction, and the treated gas 6 is exhausted to an outside. The method of feeding NH
4 HCO
2 lies in heating a storing tank 3 of NH
4 HCO
2 with an air 7 heated with a heater, thereby decomposing NH
4 HCO
2 , and the decomposed gas is fed to a channel by the aid of the air fed to the tank 3 from the line 8.
COPYRIGHT: (C)1987,JPO&Japio，下面是Method for removing nitrogen oxide contained in exhaust gas专利的具体信息内容。
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