Determination of coal ash content by the combined x-ray fluorescence and scattering spectrum

2018 ◽  
Vol 89 (2) ◽  
pp. 023103 ◽  
Author(s):  
I. F. Mikhailov ◽  
A. A. Baturin ◽  
A. I. Mikhailov ◽  
S. S. Borisova ◽  
L. P. Fomina
Keyword(s):  
Coal Ash ◽  
Ash Content ◽  
X Ray ◽  
Scattering Spectrum

scholarly journals DETERMINATION OF ASH CONTENT IN COAL BY X-RAY FLUORESCENCE ANALYSIS Authors D Baimolda

2021 ◽  
Vol 73 (1) ◽  
pp. 82-84
Author(s):  
D. Baimolda ◽  
◽  
T. Cechak ◽  
Sh. Shyngysova ◽  
◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Coal Ash ◽  
Fluorescence Analysis ◽  
Ash Content ◽  
Environmental Damage ◽  
Coal Quality ◽  
X Ray ◽  
Burning Coal

This article discusses the advantages of X-ray fluorescence analysis (XRF) techniques for the determination of ash in coal. The quality of coal depends on the amount of ash contained in it. On the other hand, ash causes irreversible environmental damage when using coal as a source of energy. Since coal is considered as the most important source of energy, coal quality is directly related to ash, which correlates with its non-combustible minerals and elements. Some elements such as S (sulfur), Ti (titanium), Ca (calcium), Fe (iron) after burning coal can have an adverse impact on the environment. Thus, we have demonstrated in this study how we can determine the ash content consisting of noncombustible minerals in the composition of coal and, thus, assess the quality of coal using X-ray fluorescence research. It also describes how we can determine coal ash samples using the XRF analyzer 123-1 in online, which is one of the most optimal methods in nuclear physics.

scholarly journals Coal Ash Content Measurement Based on Pseudo-Dual Energy X-ray Transmission

Minerals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1433
Author(s):  
Xiufeng Zhang ◽  
Long Liang ◽  
Taiyou Li ◽  
Jiakun Tan ◽  
Xingguo Liang ◽  
...  
Keyword(s):  
Real Time ◽  
Coal Ash ◽  
Absolute Error ◽  
Dual Energy ◽  
Ash Content ◽  
X Ray ◽  
Content Measurement ◽  
Filter Tube ◽  
The Absolute ◽  
Wave Filter

The real-time ash content measurement is the fundamental condition for the timely adjustment and intelligent control of operation parameters in coal production and utilization industry. In the present work, a real-time ash content analyzer based on the pseudo-dual energy X-ray transmission was developed. The feasibility of this X-ray ash content analyzer was validated by the linear relationship between ash content and five characteristic parameters of X-ray. The conditions of wave filter, tube voltage, and tube current were optimized. The comparison between the ash contents measured by muffle furnace and the X-ray ash content analyzer was conducted in laboratory and industry. It was found that the absolute error was smaller than 1% for clean coal with ash content of approximately 10%, and the possibility of the absolute error smaller than 0.5% was higher than 85%.

Rapid Determination of Ash in Coal by Compton Scattering, Ca, and Fe X-Ray Fluorescence

1979 ◽  
Vol 23 ◽  
pp. 45-55 ◽  
Author(s):  
Jacques Renault
Keyword(s):  
New Mexico ◽  
Fluorescence Spectroscopy ◽  
Absorption Coefficient ◽  
Compton Scattering ◽  
Rapid Determination ◽  
Ash Content ◽  
Average Error ◽  
Compton Wavelength ◽  
X Ray

AbstractThe intensity of Compton scattering, Fe, and Ca chatacteristic radiation can be used to estimate the amount of ash in coal by Xray fluorescence spectroscopy. Mo, W, and Cr radiation were used to study a suite of New Mexico coals, and the best results were obtained with Mo and W X-ray tubes. If the actual concentrations of Fe2O3 and CaO and the mass absorption coefficient, μ*, at the Compton wavelength of scattered Mo K radiation can be determined, the regression equation:%Ash - 24.2μ* - 6.28(%Fe2O3) - 1.96(%CaO) - 3.4estimates the ash content with an average error of 0.5% ash at 0.71Å.

Quantitative Analyses by Fluorescent X-Ray Spectrography. Determination of Germanium in Coal and Coal Ash

1957 ◽  
Vol 29 (7) ◽  
pp. 1009-1017 ◽  
Author(s):  
W. J. Campbell ◽  
H. F. Carl ◽  
C. E. White
Keyword(s):  
Coal Ash ◽  
X Ray ◽  
Quantitative Analyses

A Simple Graphical Procedure for Rapid Estimation of Ash in Coal by X-Ray Back-Scattering

1985 ◽  
Vol 39 (3) ◽  
pp. 470-472
Author(s):  
H. D. Pandey ◽  
M. S. Prasad
Keyword(s):  
Rapid Determination ◽  
Calibration Procedure ◽  
Ash Content ◽  
Regression Equation ◽  
Rapid Estimation ◽  
X Ray ◽  
Back Scattering

This paper describes a simple graphical calibration procedure for rapid determination of ash content in coal samples. The results obtained with this procedure are compared with those obtained earlier with the use of a regression equation. The two results are found to be in agreement.

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