Experimental study on gasification of bituminutesous coal char with CO2 catalysed by Fe (NO3)3

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.

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Experimental study on the impact of reactant gas pressure in the conversion of coal char to combustible gas products in the context of Underground Coal Gasification

Fuel ◽

10.1016/j.fuel.2015.06.097 ◽

2015 ◽

Vol 159 ◽

pp. 508-518 ◽

Cited By ~ 10

Author(s):

Eleni Konstantinou ◽

Richard Marsh

Keyword(s):

Experimental Study ◽

Coal Gasification ◽

Coal Char ◽

Gas Pressure ◽

Underground Coal Gasification ◽

Combustible Gas ◽

Gas Products ◽

The Impact

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Experimental study on gasification of bituminutesous coal char with CO2 catalysed by CaO

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/354/1/012036 ◽

2019 ◽

Vol 354 ◽

pp. 012036

Author(s):

X L Suo ◽

Y Song ◽

J G Sheng

Keyword(s):

Experimental Study ◽

Coal Char

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

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010013955x ◽

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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