Denitration system catalyst activity evaluation method and denitration efficiency correction method
The invention relates to a denitration system catalyst activity evaluation method and a denitration efficiency correction method. The evaluation method comprises the following steps: 1) obtaining theconverted concentration and oxygen content of NOx in flue gas at an inlet of a denitration system, th...
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| creator | WANG LEI JI YA LAN XIAOCUN WANG LIPENG LU CHAOFENG YANG ZESHENG AN JINGXUE SHENG RANRAN QIN QI XING ZHENZHONG LUO XUEJIAO CHENG JINWU |
| description | The invention relates to a denitration system catalyst activity evaluation method and a denitration efficiency correction method. The evaluation method comprises the following steps: 1) obtaining theconverted concentration and oxygen content of NOx in flue gas at an inlet of a denitration system, the ammonia escape concentration in flue gas at an outlet of the denitration system and the convertedconcentration of NOx in purified flue gas at the outlet; 2) calculating the denitration correction efficiency according to a formula; and 3) monitoring the change trend of the denitration correctionefficiency on line, and if the denitration correction efficiency has a downward moving trend, indicating that the activity of the catalyst is reduced. According to the evaluation method of the catalyst activity provided by the invention, the catalyst activity is evaluated on line mainly based on the correction of the denitration efficiency, and the influence of the ammonia/nitrogen molar ratio isrelatively small when excess |
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The evaluation method comprises the following steps: 1) obtaining theconverted concentration and oxygen content of NOx in flue gas at an inlet of a denitration system, the ammonia escape concentration in flue gas at an outlet of the denitration system and the convertedconcentration of NOx in purified flue gas at the outlet; 2) calculating the denitration correction efficiency according to a formula; and 3) monitoring the change trend of the denitration correctionefficiency on line, and if the denitration correction efficiency has a downward moving trend, indicating that the activity of the catalyst is reduced. 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| subjects | INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Denitration system catalyst activity evaluation method and denitration efficiency correction method |
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