Thermogravimetric kinetic modelling of in-situ catalytic pyrolytic conversion of rice husk to bioenergy using rice hull ash catalyst

Loy, A.C.M. and Gan, D.K.W. and Yusup, S. and Chin, B.L.F. and Lam, M.K. and Shahbaz, M. and Unrean, P. and Acda, M.N. and Rianawati, E. (2018) Thermogravimetric kinetic modelling of in-situ catalytic pyrolytic conversion of rice husk to bioenergy using rice hull ash catalyst. Bioresource Technology, 261 . pp. 213-222.

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The thermal degradation behaviour and kinetic parameter of non-catalytic and catalytic pyrolysis of rice husk (RH) using rice hull ash (RHA) as catalyst were investigated using thermogravimetric analysis at four different heating rates of 10, 20, 50 and 100 K/min. Four different iso conversional kinetic models such as Kissinger, Friedman, Kissinger-Akahira-Sunose (KAS) and Ozawa-Flynn-Wall (OFW) were applied in this study to calculate the activation energy (EA) and pre-exponential value (A) of the system. The EA of non-catalytic and catalytic pyrolysis was found to be in the range of 152�190 kJ/mol and 146�153 kJ/mol, respectively. The results showed that the catalytic pyrolysis of RH had resulted in a lower EA as compared to non-catalytic pyrolysis of RH and other biomass in literature. Furthermore, the high Gibb's free energy obtained in RH implied that it has the potential to serve as a source of bioenergy production. © 2018 Elsevier Ltd

Item Type:Article
Impact Factor:cited By 1
Uncontrolled Keywords:Activation energy; Biomass; Catalysts; Free energy; Kinetic parameters; Kinetic theory; Pyrolysis; Reaction kinetics, Activation energies (Ea); Bioenergy productions; Catalytic pyrolysis; Degradation behaviours; Kinetic method; Pyrolytic conversion; Rice hull ash; Rice husk, Thermogravimetric analysis, activation energy; bioenergy; catalysis; catalyst; crop residue; Gibbs free energy; reaction kinetics; thermal decomposition; thermogravimetry, Article; bioenergy; catalysis; Friedman test; kinetics; Kissinger Akahira Sunose kinetics; Kissinger kinetics; Ozawa Flynn Wall kinetics; priority journal; pyrolysis; rice hull ash; rice husk; thermogravimetry; wood ash, Activation Energy; Biomass; Catalysts; Free Energy; Pyrolysis; Reaction Kinetics
Departments / MOR / COE:Research Institutes > Institute for Sustainable Building
ID Code:21447
Deposited By: Ahmad Suhairi
Deposited On:25 Sep 2018 06:34
Last Modified:07 Jan 2019 07:39

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