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Kinetics and thermodynamic analysis in one-pot pyrolysis of rice hull using renewable calcium oxide based catalysts

Gan, D.K.W. and Loy, A.C.M. and Chin, B.L.F. and Yusup, S. and Unrean, P. and Rianawati, E. and Acda, M.N. (2018) Kinetics and thermodynamic analysis in one-pot pyrolysis of rice hull using renewable calcium oxide based catalysts. Bioresource Technology, 265 . pp. 180-190.

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Abstract

Thermodynamic and kinetic parameters of catalytic pyrolysis of rice hull (RH) pyrolysis using two different types of renewable catalysts namely natural limestone (LS) and eggshells (ES) using thermogravimetric analysis (TG) approach at different heating rates of 10�100 K min�1 in temperature range of 323�1173 K are investigated. Catalytic pyrolysis mechanism of both catalysts had shown significant effect on the degradation of RH. Model free kinetic of iso-conversional method (Flynn-Wall-Ozawa) and multi-step reaction model (Distributed Activation Energy Model) were employed into present study. The average activation energy was found in the range of 175.4�177.7 kJ mol�1 (RH), 123.3�132.5 kJ mol�1 (RH-LS), and 96.1�100.4 kJ mol�1 (RH-ES) respectively. The syngas composition had increased from 60.05 wt to 63.1 wt (RH-LS) and 63.4 wt (RH-ES). However, the CO2 content had decreased from 24.1 wt (RH) to 20.8 wt (RH-LS) and 19.9 wt (RH-ES). © 2018 Elsevier Ltd

Item Type:Article
Impact Factor:cited By 0
Uncontrolled Keywords:Activation energy; Catalysts; Kinetics; Lime; Limestone; Pyrolysis; Thermoanalysis; Thermodynamics, Catalytic pyrolysis; Catalytic pyrolysis mechanisms; Distributed activation energy model; Eggshell; Iso-conversional method; Kinetics and thermodynamics; Rice hulls; Thermodynamic parameter, Thermogravimetric analysis, calcium oxide; cellulose; hemicellulose; lignin; limestone, activation energy; catalysis; crop residue; eggshell; limestone; parameterization; pyrolysis; reaction kinetics; thermodynamics; thermogravimetry, Article; bioenergy; biomass; catalyst; comparative study; decomposition; degradation; distributed activation energy model; egg shell; enthalpy; entropy; Flynn Wall Ozawa model; food waste; heat tolerance; heat transfer; heating; industrial waste; kinetic parameters; mathematical model; priority journal; pyrolysis; renewable energy; rice husk; temperature dependence; thermal conductivity; thermodynamics; thermogravimetry, Activation Energy; Catalysts; Kinetics; Lime; Pyrolysis; Thermodynamics
ID Code:21408
Deposited By: Ahmad Suhairi
Deposited On:25 Sep 2018 06:35
Last Modified:25 Sep 2018 06:35

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