Evaluation of isothermal kinetics of the thermal decomposition of guanidine nitrate in constant volume

2018 ◽  
Vol 36 (4) ◽  
pp. 412-423 ◽  
Author(s):  
Dong Ze ◽  
Chen Yingying ◽  
Chen Liping ◽  
Chen Wanghua ◽  
Zhang Jun ◽  
...  
2012 ◽  
Vol 581-582 ◽  
pp. 112-116 ◽  
Author(s):  
Hua Qing Xue ◽  
Hong Yan Wang ◽  
Gang Yan ◽  
Wei Guo ◽  
Xiao Bo Li ◽  
...  

The kinetics of the thermal decomposition of Huadian oil shale was studied at five different isothermal atmospheres of 623K, 648K, 673K, 698K, and 723K. The temperature recorded was that of the sample that the temperature error between furnace and sample will eliminate. According to conversion data, the effect of increased temperature is to decrease the pyrolysis time. The conversion data described the oil shale pyrolysis as two stages, rapid conversion and modest conversion. The Arrhenius equations of ki=1.40×105e-109828/RT and kii=1.76×106e-130463/RT were obtain by isothermal kinetics model for each stage.


2005 ◽  
Vol 488-489 ◽  
pp. 61-64 ◽  
Author(s):  
Xing Fu Song ◽  
Jin Wang ◽  
Xiang Tian Wang ◽  
Jian Guo Yu

Magnesium chloride hex-ammoniate (MgCl2·6NH3) is an intermediate to produce anhydrous magnesium chloride (MgCl2) by method of reaction crystallization. MgCl2·6NH3 is decomposed at 670K to produce anhydrous magnesium chloride. The process of thermal decomposition and its non-isothermal kinetics of MgCl2·6NH3 is studied. Results show that the thermal decomposition process is made up of three stages, the thermal decomposition functions and the thermal decomposition kinetics parameters, such as activation energy (E), pro-exponential factor (A) of MgCl2·6NH3 for each step are obtained by means of the Acher differential, the Coats-Redfern integral and multi-accelerated heating rate method. This study provides a valuable theoretical basis for MgCl2·6NH3 decomposition process on industrialization.


2010 ◽  
Vol 21 (12) ◽  
pp. 1558-1561 ◽  
Author(s):  
Hai-Xia Ma ◽  
Ji-Rong Song ◽  
Rong-Zu Hu ◽  
Jun Li

2011 ◽  
Vol 107 (3) ◽  
pp. 1023-1029 ◽  
Author(s):  
Nopsiri Chaiyo ◽  
Rangson Muanghlua ◽  
Surasak Niemcharoen ◽  
Banjong Boonchom ◽  
Panpailin Seeharaj ◽  
...  

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