NDLI: Investigation on SO$_{2}$, NO and NO$_{2}$ release characteristics of Datong bituminous coal during pressurized oxy-fuel combustion

Content Provider	Springer Nature Link
Author	Lei, Ming Huang, Xingzhi Wang, Chunbo Yan, Weiping Wang, Songling
Copyright Year	2016
Abstract	The release behaviors of SO$_{2}$, NO and NO$_{2}$ of Datong bituminous coal during the pressurized oxy-fuel combustion were studied by pressurized thermogravimetric analyzer combined with Fourier transform infrared spectroscopy, which mainly focused on the effect of pressure to the emission characteristics. The experimental results demonstrated that more pyrite could be converted to the sulfur precursors and then oxidized to SO$_{2}$ with increasing pressure up to 2 MPa. However, because the conversion of SO$_{2}$ to SO$_{3}$ probably was accelerated at 3 MPa, the conversion rate of fuel-S to SO$_{2}$ decreased to some extent. Along with the increase of volatiles yield at elevated pressure, more volatile-N released during devolatilization converted into NO which led to an increase of NO emission. With increasing pressure from 0.1 to 2 MPa, the conversion value of fuel-N to NO$_{2}$ increased gradually due to the elevated oxygen partial pressure. But the NO$_{2}$ emission declined somewhat at 3 MPa due to the accelerated decomposition rate of NO$_{2}$ at higher combustion temperature. The NO$_{x}$ (NO and NO$_{2}$) emission under pressurized oxy-fuel atmosphere monotonously increased with increasing pressure.
Starting Page	1067
Ending Page	1075
Page Count	9
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	126
Issue Number	3
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-07-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pressurized oxy-fuel combustion SO$_{2}$ NO NO$_{2}$ PTGA-FTIR Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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