Application of Hybrid Coal Reburning/SNCR Processes for NOx Reduction in a Coal-Fired Boiler

2009 ◽  
Vol 26 (2) ◽  
pp. 311-318 ◽  
Author(s):  
Yang Weijuan ◽  
Zhou Zhijun ◽  
Zhou Junhu ◽  
L.V. Hongkun ◽  
Liu Jianzhong ◽  
...  
Keyword(s):  
Nox Reduction ◽  
Coal Reburning

Optimisation of NOx reduction in advanced coal reburning systems and the effect of coal type☆

Fuel ◽  
2003 ◽  
Vol 82 (4) ◽  
pp. 373-384 ◽  
Author(s):  
E Hampartsoumian ◽  
O.O Folayan ◽  
W Nimmo ◽  
B.M Gibbs
Keyword(s):  
Nox Reduction ◽  
Coal Reburning ◽  
Coal Type

Experimental Study for NOx Reduction Using Four Chinese Pulverized Coals

2005 ◽  
Author(s):  
Zhihua Wang ◽  
Junhu Zhou ◽  
Jun Cheng ◽  
Hao Zhou ◽  
Kefa Cen
Keyword(s):  
Bituminous Coal ◽  
No Reduction ◽  
Nox Reduction ◽  
Pilot Scale ◽  
Stoichiometric Ratio ◽  
Coal Rank ◽  
Reduction Efficiency ◽  
Lean Coal ◽  
Coal Reburning ◽  
The Impact

Four typical coals with different ranks around China were used as reburning fuels to evaluate its ability for NOx reduction in a pilot scale entrainment reactor. The selected four coals have similar fuel-N containing from 1.09% to 1.30% at different coal rank from bituminous to anthracite. Results show that Bituminous coal (Yanzhou, Huainan) are advantages than anthracite (Jincheng) and lean coal (Zhengzhou). Due to Yanzhou coal’s more moisture and less ash contents, it’s the best coal for reburning in this test. When using Huainan coal as reburning fuel, carbon in ash increased form 3.64% to 4.52% along with the increase of heat input from 15 to 25%. The optimal temperature for Huainan coal reburning is around 1300°C no larger than 1400°C. With the increasing of reburn zone stoichiometric ratio from 0.6 into 1.2 the NO reduction efficiency decreased from 52.1% into 17.6%. The impact of particle fineness on the NO reduction is not so evident.

scholarly journals Plasma assisted ammonia combustion: Simultaneous NOx reduction and flame enhancement

2021 ◽  
Vol 228 ◽  
pp. 430-432
Author(s):  
Jinhoon Choe ◽  
Wenting Sun ◽  
Timothy Ombrello ◽  
Campbell Carter
Keyword(s):  
Nox Reduction

NOX reduction in calciner using air staging and raw meal split technology

2021 ◽  
Author(s):  
Shubham Kinekar ◽  
Shital Mone ◽  
Adnan Taqi ◽  
Pravin Mane ◽  
Bajirao Gawali ◽  
...  
Keyword(s):  
Nox Reduction ◽  
Air Staging
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