Thermal behavior and pyrolysis of Avgamasya asphaltite
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Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Estonian Acad Publishers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The pyrolysis and thermal behavior of Avgamasya (SE Anatolia, Turkey) asphaltite was performed using thermogravimetric analysis at atmospheric pressure in dynamic nitrogen atmosphere (30mL min(-1)). Four heating rate profiles (2.5, 5, 10 and 20 K min(-1)) were applied, with a final temperature 1123 K. Two-stage decomposition was observed in the experiments. During the stage 1, when the temperature is lower, only weaker chemical bonds are destroyed and some small gaseous molecules are produced. During the stage 2, when temperature is higher, the cracking is faster and stronger chemical bonds are broken, so that larger molecules decompose into small molecules in the gaseous phase. Kissinger (differential) and Coats-Redfern (integral) methods were applied to thermogravimetric data to obtain kinetic parameters (activation energy and Arrhenius constant).
Açıklama
Anahtar Kelimeler
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Kaynak
Oil Shale
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
24
Sayı
4
