scholarly journals Bituminous Coal Combustion with New Insights

10.5772/64136 ◽  
2016 ◽  
Author(s):  
Guan-Fu Pan ◽  
Hong-De Xia ◽  
Zhen-Yu Tian
Keyword(s):  
Coal Combustion ◽  
Bituminous Coal

Char characteristics and particulate matter formation during Chinese bituminous coal combustion

2007 ◽  
Vol 31 (2) ◽  
pp. 1947-1954 ◽  
Author(s):  
Yun Yu ◽  
Minghou Xu ◽  
Hong Yao ◽  
Dunxi Yu ◽  
Yu Qiao ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Coal Combustion ◽  
Bituminous Coal ◽  
Particulate Matter Formation

scholarly journals The Variability of Mercury Content in Bituminous Coal Seams in the Coal Basins in Poland

Resources ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 127
Author(s):  
Justyna Auguścik-Górajek ◽  
Marek Nieć
Keyword(s):  
Coal Combustion ◽  
Bituminous Coal ◽  
Mercury Content ◽  
Limited Extent ◽  
Iron Sulfides ◽  
Coal Seams ◽  
Preliminary Assessment ◽  
Coal Basin ◽  
Coal Quality ◽  
Mercury Emission

The mercury content in bituminous coal in Poland varies depending on the coal basin. The highest of its concentrations are recorded in the Lower Silesian Coal Basin where this may be the result of the volcanic activity reported there. A much lower average of Hg content was recorded in Lublin and the Upper Silesian Coal Basins (LCB and USCB), although it was higher in the former. A higher mercury concentration in the LCB is probably related to the zone of supposed deep disturbances, named the Karpinsky lineament. Most published works present the data on the mercury content in the bulk of mined coal. The preliminary assessment of mercury content in coal seams indicates that it varies considerably between and within them. It is bound to the presence of arsenic-bearing iron sulfides. Concentration of mercury in small zones of limited extent suggests it was introduced by migrating fluids. The knowledge of mercury content distribution in coal seams would improve the prediction of its content in the mined coal and allow better management of produced coal quality with the aim of reducing mercury emission to the atmosphere as a result of coal combustion.

Slagging Behavior of Upgraded Brown Coal and Bituminous Coal in 145 MW Practical Coal Combustion Boiler

2012 ◽  
pp. 91-98
Author(s):  
Katsuya Akiyama ◽  
Haeyang Pak ◽  
Yoji Takubo ◽  
Toshiya Tada ◽  
Yasuaki Ueki ◽  
...  
Keyword(s):  
Brown Coal ◽  
Coal Combustion ◽  
Bituminous Coal

Development of Sulfur Release and Reaction Model for Computational Fluid Dynamics Modeling in Sub-Bituminous Coal Combustion

2017 ◽  
Vol 31 (2) ◽  
pp. 1383-1398 ◽  
Author(s):  
Zhi Zhang ◽  
Denggao Chen ◽  
Zhenshan Li ◽  
Ningsheng Cai ◽  
Junji Imada
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Coal Combustion ◽  
Bituminous Coal ◽  
Reaction Model ◽  
Dynamics Modeling ◽  
Computational Fluid Dynamics Modeling

Partitioning of Harmful Elements in PM10 from Air-and Oxy-Coal Combustion: Iron and Sulfur

2013 ◽  
Vol 726-731 ◽  
pp. 963-966
Author(s):  
Jian Qun Wu ◽  
Dun Xi Yu ◽  
Lan Lan He ◽  
Jun Chen ◽  
Meng Ting Si ◽  
...  
Keyword(s):  
Coal Combustion ◽  
Ultrafine Particles ◽  
Bituminous Coal ◽  
Ultrafine Particle ◽  
Airborne Particulate Matter ◽  
Fuel Combustion ◽  
Drop Tube ◽  
Airborne Particulate ◽  
X Ray ◽  
Adverse Health Effects

Adverse health effects of Fe and S in airborne particulate matter (PM) have been reported. However, little work has been done to characterize Fe and S in PM10 from coal combustion. In this study, a sub-bituminous coal (coal A) and a bituminous coal (coal B) were subjected to combustion in a drop tube furnace under air-and oxy-firing conditions. Size distribution and elemental composition of PM10 (PM with aerodynamic diameter 10 μm) were obtained by low pressure impactor and X-ray fluorescence techniques, respectively. The partitioning characteristics of Fe and S in PM10 were investigated. Data shows that particles of ~0.1μm contains the highest concentration of Fe for both coals under different combustion conditions. The concentration of Fe in the ultrafine particle mode decreases when switching from air combustion to oxy-fuel combustion with 21% O2. It increases when the oxygen concentration increases from 21% to 32% O2 during oxy-fuel combustion. Changing combustion conditions has little effects on Fe partitioning in particles >0.3μm. The concentration of S in PM10 increases with decreasing particle size, but changing combustion conditions have inconclusive influence. Fe and S are dominant elements in ultrafine particles, indicating a greater threat to human health.

Experimental study on NOx emissions of pulverized bituminous coal combustion preheated by a circulating fluidized bed

2019 ◽  
Vol 92 (2) ◽  
pp. 247-256 ◽  
Author(s):  
Shujun Zhu ◽  
Qinggang Lyu ◽  
Jianguo Zhu ◽  
Chen Liang
Keyword(s):  
Experimental Study ◽  
Fluidized Bed ◽  
Coal Combustion ◽  
Bituminous Coal ◽  
Circulating Fluidized Bed ◽  
Nox Emissions

scholarly journals Emission Characteristics of NOx and Unburned Carbon in Fly Ash of Sub-bituminous Coal Combustion.

2002 ◽  
Vol 45 (3) ◽  
pp. 506-511 ◽  
Author(s):  
Michitaka IKEDA ◽  
Yukitoshi KOZAI ◽  
Hisao MAKINO
Keyword(s):  
Fly Ash ◽  
Coal Combustion ◽  
Bituminous Coal ◽  
Unburned Carbon ◽  
Emission Characteristics
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