Experimental study on effects of combustion atmosphere and coal char on NO2 reduction under oxy-fuel condition

2019 ◽  
Vol 92 (4) ◽  
pp. 1023-1033 ◽  
Author(s):  
Chang'an Wang ◽  
Pengqian Wang ◽  
Yongbo Du ◽  
Defu Che
Keyword(s):  
Experimental Study ◽  
Coal Char ◽  
Combustion Atmosphere ◽  
No2 Reduction

Experimental study of NO2 reduction in N2/Ar and O2/Ar mixtures by pulsed corona discharge

2014 ◽  
Vol 26 (11) ◽  
pp. 2249-2256 ◽  
Author(s):  
Xinbo Zhu ◽  
Chenghang Zheng ◽  
Xiang Gao ◽  
Xu Shen ◽  
Zhihua Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Corona Discharge ◽  
Pulsed Corona Discharge ◽  
Pulsed Corona ◽  
No2 Reduction

Experimental Study on the Micro-Structure of the Coal Char at High Heating Rate and Elevated Pressures

2014 ◽  
Vol 953-954 ◽  
pp. 1125-1130
Author(s):  
Tian Yi Hao ◽  
Jian Sheng Zhang
Keyword(s):  
Experimental Study ◽  
Heating Rate ◽  
Coal Gasification ◽  
Coal Char ◽  
High Heating Rate ◽  
Micro Structure ◽  
Real Situation ◽  
Elevated Pressures ◽  
Coal Particles ◽  
High Heating

In the process of pressurized coal gasification, coal particles experience rapid devolatilization to become chars, which react with H2O and CO2. The characteristics of the char play an important role in the gasification research. Hence acquisition of coal char fitting real situation is demanded. The article uses PDTF system to produce coal char at high heating rate under pressurized conditions, and char morphology and pore structure are analyzed.

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

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