期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 126, 期 2, 页码 943-948出版社
SPRINGER
DOI: 10.1007/s10973-016-5505-8
关键词
Kinetic; Pyrolysis; Mesoporous ZSM-5; Biodiesel; Shea butter
资金
- Fundamental Research Grant Scheme (FRGS) Grant under University of Malaya. [FP031-2013A]
This study compared the kinetics of biodiesel produced over mesoporous ZSM-5 zeolites (0.3mesoZBio and 0.4mesoZBio) and conventional ZSM-5 zeolites (ZBio). The pyrolysis of each biodiesel was carried out in the presence of nitrogen at different heating rates of 10, 15 and 20 A degrees C min(-1). The reaction order, activation energy (E (A)) and frequency factor (A) were computed using four different models. The models are Arrhenius, Coats-Redfern, Ingraham-Marrier and Differential model. According to the computed average activation energy based on first order, the activation energies of the produced biodiesel are very close. ZBio exhibits the highest E (A) (86.53 kJ mol(-1)) compared to 0.3mesoZBio and 0.4mesoZBio (84.92 and 83.26 kJ mol(-1), respectively). Therefore, it is tenable to adduce ZBio as the most stable because higher activation energy engenders higher stability.
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