Theoretical Study of the Influence of Mixing on the Selective Noncatalytic Reduction Process with CH4or H2Addition

2011 ◽  
Vol 50 (18) ◽  
pp. 10859-10864 ◽  
Author(s):  
Qingxi Cao ◽  
Hui Liu ◽  
Shaohua Wu
Keyword(s):  
Theoretical Study ◽  
Reduction Process ◽  
Selective Noncatalytic Reduction ◽  
Noncatalytic Reduction

Experimental Study of NO Removal by Gas Reburning and Selective Noncatalytic Reduction using Ammonia in a Lab-Scale Reactor

2010 ◽  
Vol 24 (3) ◽  
pp. 1696-1703 ◽  
Author(s):  
D. Quang Dao ◽  
L. Gasnot ◽  
K. Marschallek ◽  
A. El Bakali ◽  
J. F. Pauwels
Keyword(s):  
Experimental Study ◽  
No Removal ◽  
Selective Noncatalytic Reduction ◽  
Scale Reactor ◽  
Noncatalytic Reduction

scholarly journals Numerical Study on the Denitrification Efficiency of Selective Noncatalytic Reduction Technology in Decomposing Furnace

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Shunsheng Xu ◽  
Jiazhen He ◽  
Fei Pei ◽  
Kun Li ◽  
Lele Liu ◽  
...  
Keyword(s):  
Numerical Study ◽  
Ammonia Nitrogen ◽  
Molar Ratio ◽  
Urea Solution ◽  
Injection Velocity ◽  
Cement Kiln ◽  
Dry Process ◽  
Optimal Injection ◽  
Selective Noncatalytic Reduction ◽  
Noncatalytic Reduction

In order to reduce the nitrogen oxide emission of cement plant, the denitrification of decomposing furnace is studied in this paper. Based on Fluent software platform, the 2500 t/d new dry-process cement kiln decomposing furnace of a plant is modeled and simulated by using air fractional combustion technology combined with selective noncatalytic reduction technology. The model and simulation methods are verified by the field test. The effects of the urea injection position and ammonia-nitrogen molar ratio on NO, NH3, and denitrification efficiency are studied by numerical simulation. The results show that the optimal injection position of the urea solution is 12 m, the optimal ammonia/nitrogen molar ratio is 1.8, and the optimal injection velocity of the urea solution is 40 m/s. The simulation results obtained under the optimal parameters are as follows: NO concentration is 187.60 mg/m3, NH3 escape is 32.40 mg/m3, and denitrification efficiency is 74.75%.

Reduced-order modeling for the control of selective noncatalytic reduction of nitrogen monoxide

AIChE Journal ◽  
2015 ◽  
Vol 62 (3) ◽  
pp. 928-938 ◽  
Author(s):  
Benjamin Farcy ◽  
Luc Vervisch ◽  
Pascale Domingo ◽  
Nicolas Perret
Keyword(s):  
Nitrogen Monoxide ◽  
Reduced Order Modeling ◽  
Reduced Order ◽  
Selective Noncatalytic Reduction ◽  
Noncatalytic Reduction
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