scholarly journals Development of Low NOx Combustion Technology in Coke Oven

2004 ◽  
Vol 83 (11) ◽  
pp. 882-888 ◽  
Author(s):  
Shuhei YOSHIDA ◽  
Shoji TAKASE ◽  
Makoto UCHIDA ◽  
Takafumi SAJI ◽  
Hiroyuki KOYAMA ◽  
...  
Keyword(s):  
Coke Oven ◽  
Combustion Technology ◽  
Low Nox Combustion

The Large Capacity Pulverized Coal Fired Utility Boiler and the Low NOx Combustion Technology Developments in China in Response to Environmental Challenges

2011 ◽  
Author(s):  
Hao Zhou ◽  
Guiyuan Mo ◽  
Kefa Cen
Keyword(s):  
High Efficiency ◽  
Catalytic Reduction ◽  
Pulverized Coal ◽  
Large Capacity ◽  
Environmental Challenges ◽  
Utility Boiler ◽  
Integrated Technology ◽  
Combustion Technology ◽  
Low Nox Combustion ◽  
Scr System

Large capacity pulverized coal fired utility boiler technology is in quick developments in China, hundreds of super critical boilers have been constructed in the last several years which can achieve high efficiency and low pollutants emissions. The different types of super critical boilers are introduced in this paper, they include the single-furnace with double fireball corner fired furnace, the wall fired furnace and the tower-type furnace. The low NOx combustion technologies have been widely used to face the environmental challenges. The low NOx technologies employed in pulverized-coal boilers consist of the combustion modification and post-combustion technology. The low NOx combustion modification technology includes the low NOx burner, close coupled over fire air (CCOFA) and separated over fire air (SOFA). The post-combustion technology consists of selective non-catalytic reduction (SNCR) and selective catalytic reduction (SCR) technologies. Zhejiang University develops integrated low NOx technology, including the low NOx combustion system, SNCR system and SCR system. This integrated technology can reduce the NOx emissions to be lower than 50 mg/Nm3.

scholarly journals Verification of the Low NOx Combustion Technology for the Compact Boiler.

1993 ◽  
Vol 72 (1) ◽  
pp. 39-47 ◽  
Author(s):  
Yasuo YOSHII ◽  
Tooru INADA ◽  
Shigeru AZUHATA ◽  
Tatuzou ENOMOTO ◽  
Kenji KOBAYASHI ◽  
...  
Keyword(s):  
Combustion Technology ◽  
Low Nox Combustion

scholarly journals Development of Low NOx Combustion Structure in Coke Oven

2004 ◽  
Vol 90 (9) ◽  
pp. 679-685 ◽  
Author(s):  
Shuhei YOSHIDA ◽  
Shoji TAKASE ◽  
Makoto UCHIDA ◽  
Takafumi SAJI ◽  
Hiroyuki KOYAMA ◽  
...  
Keyword(s):  
Coke Oven ◽  
Low Nox Combustion

Development of a Dry Low NOx Combustor for Dual Gaseous Fuels of Natural Gas and Petroleum Gas

2018 ◽  
Author(s):  
Tomohiro Asai ◽  
Keisuke Miura ◽  
Kazuki Abe ◽  
Yoshinori Matsubara ◽  
Tomomi Koganezawa ◽  
...  
Keyword(s):  
Power Generation ◽  
Natural Gas ◽  
Test Results ◽  
Liquefied Petroleum Gas ◽  
Gaseous Fuels ◽  
Energy Demands ◽  
Fuel Flexibility ◽  
Combustion Technology ◽  
Low Nox Combustion ◽  
Low Nitrogen

Liquefied petroleum gas (LPG) will be suitable for satisfying part of the growing global energy demands. The widespread utilization of LPG as a gas turbine fuel for power generation requires an advanced combustor that achieves dry low nitrogen oxides (NOx) combustion and flashback-resistant combustion. This paper describes the development of a “multi-cluster combustor” as an advanced dry low NOx and flashback-resistant combustion technology for dual gaseous fuels of natural gas and petroleum gas. The dual gaseous fuel capability will contribute to expanding fuel flexibility. The purpose of this paper is to evaluate the feasibility of the dual gaseous fueled combustion with the multi-cluster combustor with the same configuration. The combustor was tested in a single-can combustor test stand at medium pressure with both fuels. In the tests, natural gas consisted mainly of methane with a content of over 90 vol.%, and petroleum gas consisted almost entirely of propane. The test results showed that the combustor achieves dry low NOx combustion of both fuels within their stable ranges without flashback. This paper concluded from the test results that the multi-cluster combustor possesses the potential capability to achieve dry low NOx and flashback-resistant combustion of dual gaseous fuels of natural gas and petroleum gas. As the next step, further tests will be required with petroleum gas including butane and for high pressure conditions.

The Discharge Status and Technical Analysis of NOX of Thermal Power Plant Boiler

2014 ◽  
Vol 535 ◽  
pp. 131-134 ◽  
Author(s):  
Dong Yang ◽  
Qing Wen Chen
Keyword(s):  
Power Plant ◽  
Flue Gas ◽  
Thermal Power Plant ◽  
Catalytic Reduction ◽  
Thermal Power ◽  
Combustion Technology ◽  
Discharge Status ◽  
Low Nox Combustion ◽  
Plant Boiler ◽  
Flue Gas Denitrification

NOXis one of the pollutants which will be key governanced by Government in Twelfth Five, and thermal power plant boiler is the main source of NOXin the atmospheric. Overview of the discharge status of NOXand the state-controlled status of the power plant NOXdischarge regulations with the latest standards, analysis of the current two thermal power plant NOXcontrol technology: low-NOx combustion technology and flue gas denitrification technology. Low NOx combustion technology introduces low excess air combustion technology, air staged combustion technology, flue gas recirculation technology, flue gas denitrification technology introduced four methods which is selective catalytic reduction, selective non-catalytic reduction, hybrid SNCR-SCR catalyst reduction combined metgod and wet NOXabsorption system, principle of denitration and their advantages and disadvantages of different methods are discussed. Finally a brief introduction of the difficulties of governance NOXand some necessary issues when select zhe control methods.

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