Nonisothermal Dehydration Kinetics of Tincalconite by Thermal Analysis Data
Küçük Resim Yok
Tarih
2009
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Soc Chemical Eng Japan
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the present study, the thermal decomposition kinetics of tincalconite was investigated by using thermo gravimetric (TG) and differential thermal analysis (DTA) data. The modified form of asymptotic expansion of the temperature integral integral(infinity)(x)(e(-x)/x(2))dx, which is employed in a wide range of x = E/RT ratios, was used to perform the kinetic analysis. An empirical model was suggested for calculation of activation energy for non-isothermal decomposition kinetics of solids. The calculation of activation energy of tincalconite was carried out by means of different methods. It was determined that the process takes place in two steps and fits a first order reaction kinetic model. The results obtained from five methods were generally in good agreement.
Açıklama
Anahtar Kelimeler
Dehydration, Nonisothermal Kinetics, TGA, DTA, Tincalconite, Temperature Integral
Kaynak
Journal of Chemical Engineering of Japan
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
42
Sayı
7
