Investigation of pyrolysis kinetics of humic acids from low rank Anatolian coal by thermal analysis
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Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Thermogravimetric analysis (TGA) of humic acid samples from low rank Anatolian (east of Turkey, Bingol) coal were investigated under atmospheric pressure. The samples were subjected for the decomposition of organic matter ambient to 800 degrees C at four different heating rates (5, 10, 15, and 20 degrees C min(-1)). The humic acid samples were started at decomposition between 170 - 206 degrees C and amount of residues varied 55-60% according to heating rate. Each of samples was showed a single step mass loss. TG/DTG data of samples were analyzed to determine activation energy values by Coats and Redfern method and Arrhenius method. Activation energy values are similar obtained from Coats and Redfern method and Arrhenius method and varied from 25 to 29 kJ mol(-1).
Açıklama
Anahtar Kelimeler
Humic Acid, Kinetic Analysis, Pyrolysis, Thermogravimetry
Kaynak
Energy Sources Part A-Recovery Utilization and Environmental Effects
WoS Q Değeri
Q4
Scopus Q Değeri
Q1
Cilt
29
Sayı
10
