Molecular dynamics investigation on supercritical water oxidation of a coal particle

Author(s):  
Jian Chen ◽  
Xiong Pan ◽  
Hanqing Li ◽  
Hanhui Jin ◽  
Jianren Fan
2019 ◽  
Vol 23 (Suppl. 3) ◽  
pp. 781-787 ◽  
Author(s):  
Xiao Zhao ◽  
Yigang Liu ◽  
Jian Zou ◽  
Qiuxia Wang ◽  
Hao Liu ◽  
...  

The supercritical water oxidation is a significant way for the waste disposal. The diffusion of the oxygen in the water at the infinite dilution is simulated at 300 K and 1 atm, and 650 K, 673 K, 773 K, 873 K, 973 K, and 250 atm with the molecular dynamics software. The mean squared displacement method is used to calculate the diffusion coefficient. At 300 K, 1 atm, our calculation gives 0.20 ? 10?8 m2/s, which is very near to three empirical equations. When the condition is beyond the critical point, these empirical equations lost their accuracy, and only Kawasaki-Oppenheim equation can be compared to our calculation results. At supercritical conditions, we illustrate the diffusion coefficients with the Arrhenius equation and the activation energy is 22.54 kJ/mol.


1996 ◽  
Author(s):  
Steven F. Rice ◽  
Richard R. Steeper ◽  
Russell G. Hanush ◽  
Jason D. Aiken ◽  
Eric Croiset

1995 ◽  
Author(s):  
Steven F. Rice ◽  
Jefferson W. Tester ◽  
Kenneth Brezinsky

1995 ◽  
Author(s):  
Steven F. Rice ◽  
Jefferson W. Tester ◽  
Kenneth Brezinsky

2011 ◽  
Vol 4 (3) ◽  
pp. 219-230 ◽  
Author(s):  
Angel Martin ◽  
Maria Dolores Bermejo ◽  
Maria Jose Cocero

Author(s):  
Anmol L. Purohit ◽  
John A. Misquith ◽  
Brian R. Pinkard ◽  
Stuart J. Moore ◽  
John C. Kramlich ◽  
...  

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