Experimental study of fuel-lean reburn system for NOX reduction and CO emission in oxygen-enhanced combustion

2010 ◽  
Vol 35 (8) ◽  
pp. 710-720 ◽  
Author(s):  
Hak Young Kim ◽  
Seung Wook Baek
2008 ◽  
Vol 32 (3) ◽  
pp. 216-223
Author(s):  
Chang-Yeop Lee ◽  
Hak-Young Kim ◽  
Seung-Wook Baek ◽  
Se-Won Kim

Author(s):  
Hak Young Kim ◽  
Seung Wook Baek

The present work is focused on a fuel-lean reburn system to experimentally control NOx emission from combustion process. Fuel-lean reburn system is found here to be able to replace a conventional reburning technique due to reburn fuel saving. In the conventional reburning process the NOx emission is reduced up to 45% using 20∼25% reburn fuel of total heat input, while CO emission is restricted within acceptable limits by adopting additional air supplying system. However, in the fuel-lean reburn system, by contrast, the amount of injected reburn fuel into the reburning zone is low enough to maintain overall fuel-lean condition in the furnace, so that no additional air system is required, and CO emission can be maintained at almost zero level. In this study, an experimental study has been done to examine the formation characteristics of NOx in a lab scale combustor (15kW) with various oxygen enhanced combustion conditions. LPG (liquefied Petroleum Gas) was used as main fuel and reburn fuel. Finally, the current fuel-lean reburn system, even with only an amount of reburn fuel of 13% of total heat input, was observed to achieve a maximum of 48% in NOx reduction.


Author(s):  
H. Ishizuka ◽  
K. Hyvarinen ◽  
A. Morita ◽  
T. Suzuki ◽  
K. Yano ◽  
...  

2014 ◽  
Vol 126 ◽  
pp. 266-275 ◽  
Author(s):  
Jiancheng Yang ◽  
Rui Sun ◽  
Shaozeng Sun ◽  
Ningbo Zhao ◽  
Ning Hao ◽  
...  

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