scholarly journals Kinetics of coal pyrolysis and devolatilization

1987 ◽  
Author(s):  
Keyword(s):  
Coal Pyrolysis ◽  
Kinetics Of

Research on Pyrolysis Kinetics of Shenhua Coal and Direct Liquefaction Residue

2012 ◽  
Vol 550-553 ◽  
pp. 2758-2762 ◽  
Author(s):  
Xi Jie Chu ◽  
Yong Gang Wang ◽  
Li Hong Zhao
Keyword(s):  
Experimental Data ◽  
Activation Energy ◽  
Kinetic Parameters ◽  
Heating Rate ◽  
Coal Pyrolysis ◽  
Pyrolysis Kinetics ◽  
Differential Heating ◽  
Pyrolysis Behavior ◽  
Direct Liquefaction ◽  
Kinetics Of

The pyrolysis tests of Shenhua coal and Shenhua direct liquefaction residue have been carried out using thermogravimetric at the differential heating rate. The kinetic parameters k and E were calculated using DAEM method. Results show DAME model can describe the pyrolysis behavior of Shenhua coal within the range of 20% to 95%, the activation energy of coal pyrolysis ranges from 53.98 to 279.38 kJ/mol, and DAME model can describe the behavior of Shenhua direct liquefaction residue within the range of 10% to 80%, the activation energy of residue pyrolysis is about 170 kJ/mol. The results of which are basically consistent with the experimental data.

Pyrolysis Characteristics and Kinetics of Low Rank Coal

2011 ◽  
Vol 695 ◽  
pp. 493-496 ◽  
Author(s):  
Yong Hui Song ◽  
Jian Mei She ◽  
Xin Zhe Lan ◽  
Jun Zhou
Keyword(s):  
Weight Loss ◽  
Heating Rate ◽  
Frequency Factor ◽  
Low Rank ◽  
Coal Pyrolysis ◽  
Pyrolysis Characteristics ◽  
Second Stage ◽  
Thermo Gravimetric Analyzer ◽  
Kinetics Of ◽  
Pyrolysis Kinetic

The pyrolysis characteristics of Jianfanggou(JFG) coal was studied using a thermo-gravimetric analyzer and the pyrolysis kinetic parameters were calculated at the different heating rate. The results showed the DTG curves under different heating rate had three peaks and the corresponding temperature were 100°C, 470°C and 750°C, the pyrolysis process can be divided into three stages conclusively. The maximum weight loss rate at 470°C indicated the major weight loss occurred in the second stage. The Tb, Tf and T∞ obtained under experiment situation. The results of the JFG coal pyrolysis kinetic showed the Tb, Tf and T∞ increased gradually with the accretion of the heating rate. In the meantime, the variation of frequency factor was consistent with the trend of activation energy.

scholarly journals Evolution Kinetics of Hydrogen Generation from Low Rank Coal Pyrolysis and Its Relation to the First Coalification Jump

2009 ◽  
Vol 25 (12) ◽  
pp. 2597-2603 ◽  
Author(s):  
LI Mei-Fen ◽  
◽  
ZENG Fan-Gui ◽  
SUN Bei-Lei ◽  
QI Fu-Hui
Keyword(s):  
Hydrogen Generation ◽  
Low Rank ◽  
Coal Pyrolysis ◽  
Low Rank Coal ◽  
Kinetics Of

Kinetics of vapor-phase secondary reactions of prompt coal pyrolysis tars

1987 ◽  
Vol 26 (9) ◽  
pp. 1831-1838 ◽  
Author(s):  
Michael A. Serio ◽  
William A. Peters ◽  
Jack B. Howard
Keyword(s):  
Vapor Phase ◽  
Coal Pyrolysis ◽  
Secondary Reactions ◽  
Kinetics Of

Application of chemometrics to study the kinetics of coal pyrolysis: A novel approach

Fuel ◽  
2011 ◽  
Vol 90 (11) ◽  
pp. 3299-3305 ◽  
Author(s):  
Puja Khare ◽  
B.P. Baruah ◽  
P.G. Rao
Keyword(s):  
Coal Pyrolysis ◽  
Novel Approach ◽  
Kinetics Of
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