Low Temperature Denitration Technology of Dalian Institute of Chemical Physics, CAS Run in Jiangsu Yizhou Coke Oven DeNOx Device

On July 18, the low-temperature denitrification catalyst and process technology developed by the CAS Research Institute of Chemical Physics of Dalian, Wang Shudong and Cheng Hao, were successively put into operation in No. 1, No. 2 and No. 4 coke oven flue gas denitrification units of Jiangsu Yizhou Coal Coking Co., Ltd. The company coke oven flue gas has been fully denitrification.

In 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and Jiangsu Elwater Environmental Protection Equipment Engineering Co., Ltd. and Jiangsu Yizhou Coal Coking Co., Ltd. jointly implemented the flue gas denitration treatment for No. 3 coke oven of Jiangsu Yizhou Coal Coking Co., Ltd., Industrial demonstration device. After successfully driving on Nov. 17 last year, the device has been operating stably. The concentration of nitrogen oxides at the outlet of the reactor is less than 100mg / m3, which meets the most stringent emission standards of the coking industry.

On the basis of the successful operation of 3 # coke oven denitrification device, researchers at Dalian Institute of Chemical Physics optimize the operation data, catalyst and reactor. Under the premise of ensuring the denitrification performance of denitration catalyst, the system resistance is reduced and the operation of the enterprise is effectively saved Cost, 1 #, 2 #, 4 # coke oven flue gas denitrification devices have been put into operation so that the company has all the coke oven flue gas denitrification, the reactor inlet nitrogen oxide concentration of 1200mg / m3, the export of nitrogen oxide concentration The minimum is less than 20mg / m3, meet the national requirements.

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