Catalytic decomposition of nitrogen oxides from coal combustion flue gases on CeZrO2 supported Cu catalysts

2011 ◽  
Vol 176 (1) ◽  
pp. 126-130 ◽  
Author(s):  
Agata Łamacz ◽  
Andrzej Krztoń ◽  
Gérald Djéga-Mariadassou
Keyword(s):  
Nitrogen Oxides ◽  
Coal Combustion ◽  
Catalytic Decomposition ◽  
Flue Gases ◽  
Cu Catalysts

Formation and destruction of nitrogen oxides in coal combustion: Sixth quarterly report, April 1, 1989--June 30, 1989

1989 ◽  
Author(s):  
Wei-Yin Chen ◽  
T. W. Lester ◽  
L. M. Babcock ◽  
T. E. Burch ◽  
F. R. Tillman
Keyword(s):  
Nitrogen Oxides ◽  
Coal Combustion

Study on the emission characteristics of nitrogen oxides with coal combustion in pressurized fluidized bed

2019 ◽  
Vol 27 (5) ◽  
pp. 1177-1183 ◽  
Author(s):  
Zheng Gong ◽  
Yingjuan Shao ◽  
Lei Pang ◽  
Wenqi Zhong ◽  
Chao Chen
Keyword(s):  
Nitrogen Oxides ◽  
Fluidized Bed ◽  
Coal Combustion ◽  
Emission Characteristics

scholarly journals RESEARCH OF INFLUENCE OF AIR TEMPERATURE ON THE LEVEL OF NITROGEN OXIDES IN SMOKE GASES OF BOILER PLANTS

2019 ◽  
Vol 9 (4) ◽  
pp. 27-32
Author(s):  
Olga A. BALANDINA ◽  
Svetlana M. PURING
Keyword(s):  
Mathematical Modeling ◽  
Nitric Oxide ◽  
Nitrogen Oxides ◽  
Flue Gas ◽  
Software Package ◽  
Flame Temperature ◽  
Combustion Process ◽  
Flue Gases ◽  
Oxidizing Agent ◽  
Mixture Formation

The analysis of the values of the concentrations of the formed nitrogen oxides and the temperatures of the jet plume under various conditions of mixture formation is carried out. The plots of the distribution of torch temperatures and concentrations of nitric oxide in the calculated area for oxidizer temperatures of 20, 60, 100, 150, and 200 ° C were obtained and analyzed. Mathematical modeling of the gaseous fuel combustion process was carried out using the FlowVision software package. An analysis of the results showed that a decrease in the temperature of the air supplied as an oxidizing agent leads to a significant decrease in the concentration of nitrogen oxides in flue gases, while not significantly affecting the change in the flame temperature. The research results can be used to solve the problems of optimizing boiler plants, in order to reduce harmful flue gas emissions. Further modeling is planned to determine the dependence of the influence of various factors on the degree of formation of nitrogen oxides in the flue gases of boiler plants.

scholarly journals THE INVESTIGATION OF THE EFFICIENCY OF THE NITROGEN OXIDES REDUCTION BY ADVANCED REBURNING METHOD APPLICATION WITH THE COAL DUST AS A REBURNING FUEL

2017 ◽  
Vol 39 (5) ◽  
pp. 91-96 ◽  
Author(s):  
S. G. Kobzar ◽  
A. A. Khalatov
Keyword(s):  
Nitrogen Oxides ◽  
Coal Combustion ◽  
Catalytic Reduction ◽  
Coal Dust ◽  
Single Stage ◽  
Nitrogen Oxides Reduction

The investigation of the influence of the low reactivity reburning fuel coal dust on the simultaneous processes of the nitrogen oxides reduction in accordance with the mechanisms Reburning and selective non-catalytic reduction was carried out. The study showed the possibility to reduce the nitrogen oxides emissions up to 80 % compared with single-stage coal combustion.

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